[thunderbird-lightning/el6] Add mozilla-python.patch from TB el6

Orion Poplawski orion at fedoraproject.org
Sun Dec 15 05:17:52 UTC 2013


commit d1fe355a4d3f225abf3904b2062300d2d212dcdd
Author: Orion Poplawski <orion at cora.nwra.com>
Date:   Sat Dec 14 22:17:56 2013 -0700

    Add mozilla-python.patch from TB el6

 mozilla-python.patch       | 2820 ++++++++++++++++++++++++++++++++++++++++++++
 thunderbird-lightning.spec |    4 +
 2 files changed, 2824 insertions(+), 0 deletions(-)
---
diff --git a/mozilla-python.patch b/mozilla-python.patch
new file mode 100644
index 0000000..5c2114e
--- /dev/null
+++ b/mozilla-python.patch
@@ -0,0 +1,2820 @@
+diff -up mozilla-esr24/build/virtualenv/populate_virtualenv.py.python mozilla-esr24/build/virtualenv/populate_virtualenv.py
+--- mozilla-esr24/build/virtualenv/populate_virtualenv.py.python	2013-09-11 05:22:20.000000000 +0200
++++ mozilla-esr24/build/virtualenv/populate_virtualenv.py	2013-10-22 14:29:24.560993882 +0200
+@@ -16,7 +16,8 @@ import sys
+ 
+ # Minimum version of Python required to build.
+ MINIMUM_PYTHON_MAJOR = 2
+-MINIMUM_PYTHON_MINOR = 7
++# Override for RHEL
++MINIMUM_PYTHON_MINOR = 4
+ 
+ 
+ class VirtualenvManager(object):
+diff -up mozilla-esr24/dom/bindings/Codegen.py.python mozilla-esr24/dom/bindings/Codegen.py
+--- mozilla-esr24/dom/bindings/Codegen.py.python	2013-09-11 05:22:23.000000000 +0200
++++ mozilla-esr24/dom/bindings/Codegen.py	2013-10-22 14:29:24.561993885 +0200
+@@ -8440,7 +8440,7 @@ class CGBindingRoot(CGThing):
+         def getParentDescriptor(desc):
+             if not desc.interface.parent:
+                 return set()
+-            return { desc.getDescriptor(desc.interface.parent.identifier.name) }
++            return set ([desc.getDescriptor(desc.interface.parent.identifier.name)])
+         for x in dependencySortObjects(jsImplemented, getParentDescriptor,
+                                        lambda d: d.interface.identifier.name):
+             cgthings.append(CGCallbackInterface(x))
+diff -up mozilla-esr24/python/mach/mach/logging.py.python mozilla-esr24/python/mach/mach/logging.py
+--- mozilla-esr24/python/mach/mach/logging.py.python	2013-09-11 05:22:49.000000000 +0200
++++ mozilla-esr24/python/mach/mach/logging.py	2013-10-22 14:29:24.562993887 +0200
+@@ -18,6 +18,10 @@ import logging
+ import sys
+ import time
+ 
++class NullHandler(logging.Handler):
++    def emit(self, record):
++        pass
++logging.NullHandler = NullHandler
+ 
+ def format_seconds(total):
+     """Format number of seconds to MM:SS.DD form."""
+@@ -166,7 +170,7 @@ class LoggingManager(object):
+         """Enable JSON logging on the specified file object."""
+ 
+         # Configure the consumer of structured messages.
+-        handler = logging.StreamHandler(stream=fh)
++        handler = logging.StreamHandler(fh)
+         handler.setFormatter(StructuredJSONFormatter())
+         handler.setLevel(logging.DEBUG)
+ 
+@@ -188,7 +192,7 @@ class LoggingManager(object):
+                 write_interval=write_interval)
+             formatter.set_terminal(self.terminal)
+ 
+-        handler = logging.StreamHandler(stream=fh)
++        handler = logging.StreamHandler(fh)
+         handler.setFormatter(formatter)
+         handler.setLevel(level)
+ 
+diff -up mozilla-esr24/python/mozbuild/mozbuild/backend/base.py.python mozilla-esr24/python/mozbuild/mozbuild/backend/base.py
+--- mozilla-esr24/python/mozbuild/mozbuild/backend/base.py.python	2013-09-11 05:22:49.000000000 +0200
++++ mozilla-esr24/python/mozbuild/mozbuild/backend/base.py	2013-10-22 14:29:24.562993887 +0200
+@@ -57,13 +57,13 @@ class BackendConsumeSummary(object):
+ 
+     @property
+     def reader_summary(self):
+-        return 'Finished reading {:d} moz.build files into {:d} descriptors in {:.2f}s'.format(
++        return 'Finished reading {0:d} moz.build files into {1:d} descriptors in {2:.2f}s'.format(
+             self.mozbuild_count, self.object_count,
+             self.mozbuild_execution_time)
+ 
+     @property
+     def backend_summary(self):
+-        return 'Backend executed in {:.2f}s'.format(self.backend_execution_time)
++        return 'Backend executed in {0:.2f}s'.format(self.backend_execution_time)
+ 
+     def backend_detailed_summary(self):
+         """Backend summary to be supplied by BuildBackend implementations."""
+@@ -72,7 +72,7 @@ class BackendConsumeSummary(object):
+     @property
+     def total_summary(self):
+         efficiency_value = self.cpu_time / self.wall_time if self.wall_time else 100
+-        return 'Total wall time: {:.2f}s; CPU time: {:.2f}s; Efficiency: {:.0%}'.format(
++        return 'Total wall time: {0:.2f}s; CPU time: {1:.2f}s; Efficiency: {2:.0%}'.format(
+             self.wall_time, self.cpu_time, efficiency_value)
+ 
+     def summaries(self):
+diff -up mozilla-esr24/python/mozbuild/mozbuild/backend/recursivemake.py.python mozilla-esr24/python/mozbuild/mozbuild/backend/recursivemake.py
+--- mozilla-esr24/python/mozbuild/mozbuild/backend/recursivemake.py.python	2013-09-11 05:22:49.000000000 +0200
++++ mozilla-esr24/python/mozbuild/mozbuild/backend/recursivemake.py	2013-10-22 14:29:24.562993887 +0200
+@@ -114,7 +114,7 @@ class RecursiveMakeBackend(BuildBackend)
+         self.summary.unchanged_count = 0
+ 
+         def detailed(summary):
+-            return '{:d} total backend files. {:d} created; {:d} updated; {:d} unchanged'.format(
++            return '{0:d} total backend files. {1:d} created; {2:d} updated; {3:d} unchanged'.format(
+                 summary.managed_count, summary.created_count,
+                 summary.updated_count, summary.unchanged_count)
+ 
+diff -up mozilla-esr24/python/mozbuild/mozbuild/frontend/data.py.python mozilla-esr24/python/mozbuild/mozbuild/frontend/data.py
+--- mozilla-esr24/python/mozbuild/mozbuild/frontend/data.py.python	2013-09-11 05:22:49.000000000 +0200
++++ mozilla-esr24/python/mozbuild/mozbuild/frontend/data.py	2013-10-22 14:29:24.562993887 +0200
+@@ -17,7 +17,7 @@ structures.
+ 
+ from __future__ import unicode_literals
+ 
+-from collections import OrderedDict
++from ordereddict import OrderedDict
+ 
+ 
+ class TreeMetadata(object):
+diff -up mozilla-esr24/python/mozbuild/mozbuild/frontend/reader.py.python mozilla-esr24/python/mozbuild/mozbuild/frontend/reader.py
+--- mozilla-esr24/python/mozbuild/mozbuild/frontend/reader.py.python	2013-09-11 05:22:49.000000000 +0200
++++ mozilla-esr24/python/mozbuild/mozbuild/frontend/reader.py	2013-10-22 14:29:24.562993887 +0200
+@@ -52,7 +52,7 @@ from .sandbox_symbols import (
+ )
+ 
+ 
+-if sys.version_info.major == 2:
++if sys.version_info[0] == 2:
+     text_type = unicode
+     type_type = types.TypeType
+ else:
+diff -up mozilla-esr24/python/mozbuild/mozbuild/frontend/sandbox_symbols.py.python mozilla-esr24/python/mozbuild/mozbuild/frontend/sandbox_symbols.py
+--- mozilla-esr24/python/mozbuild/mozbuild/frontend/sandbox_symbols.py.python	2013-09-11 05:22:49.000000000 +0200
++++ mozilla-esr24/python/mozbuild/mozbuild/frontend/sandbox_symbols.py	2013-10-22 14:29:24.563993889 +0200
+@@ -17,7 +17,7 @@ the Sandbox consists of, you've come to
+ 
+ from __future__ import unicode_literals
+ 
+-from collections import OrderedDict
++from ordereddict import OrderedDict
+ from mozbuild.util import (
+     HierarchicalStringList,
+     StrictOrderingOnAppendList,
+diff -up mozilla-esr24/python/mozbuild/mozpack/chrome/flags.py.python mozilla-esr24/python/mozbuild/mozpack/chrome/flags.py
+--- mozilla-esr24/python/mozbuild/mozpack/chrome/flags.py.python	2013-09-11 05:22:49.000000000 +0200
++++ mozilla-esr24/python/mozbuild/mozpack/chrome/flags.py	2013-10-22 14:29:24.563993889 +0200
+@@ -5,7 +5,7 @@
+ import re
+ from distutils.version import LooseVersion
+ from mozpack.errors import errors
+-from collections import OrderedDict
++from ordereddict import OrderedDict
+ 
+ 
+ class Flag(object):
+diff -up mozilla-esr24/python/mozbuild/mozpack/copier.py.python mozilla-esr24/python/mozbuild/mozpack/copier.py
+--- mozilla-esr24/python/mozbuild/mozpack/copier.py.python	2013-09-11 05:22:49.000000000 +0200
++++ mozilla-esr24/python/mozbuild/mozpack/copier.py	2013-10-22 14:29:24.563993889 +0200
+@@ -11,10 +11,9 @@ from mozpack.files import (
+ import mozpack.path
+ import errno
+ from collections import (
+-    namedtuple,
+-    OrderedDict,
++    namedtuple
+ )
+-
++from ordereddict import OrderedDict
+ 
+ def ensure_parent_dir(file):
+     '''Ensures the directory parent to the given file exists'''
+@@ -157,6 +156,7 @@ class FileCopier(FileRegistry):
+             destfile = os.path.normpath(os.path.join(destination, path))
+             dest_files.add(destfile)
+             ensure_parent_dir(destfile)
++            print "file.copy", destfile
+             file.copy(destfile, skip_if_older)
+ 
+         actual_dest_files = set()
+@@ -272,9 +272,12 @@ class Jarrer(FileRegistry, BaseFile):
+             old_jar = JarReader(fileobj=dest)
+         except Exception:
+             old_jar = []
+-
++        print "old jar", old_jar
++        for f in old_jar:
++          print f.filename, f
+         old_contents = dict([(f.filename, f) for f in old_jar])
+-
++        print "Old content", old_contents
++        print "JarWriter"
+         with JarWriter(fileobj=dest, compress=self.compress,
+                        optimize=self.optimize) as jar:
+             for path, file in self:
+diff -up mozilla-esr24/python/mozbuild/mozpack/files.py.python mozilla-esr24/python/mozbuild/mozpack/files.py
+--- mozilla-esr24/python/mozbuild/mozpack/files.py.python	2013-09-11 05:22:49.000000000 +0200
++++ mozilla-esr24/python/mozbuild/mozpack/files.py	2013-10-22 14:29:24.563993889 +0200
+@@ -17,7 +17,7 @@ from io import BytesIO
+ from mozpack.errors import ErrorMessage
+ from mozpack.mozjar import JarReader
+ import mozpack.path
+-from collections import OrderedDict
++from ordereddict import OrderedDict
+ 
+ 
+ class Dest(object):
+@@ -150,8 +150,10 @@ class ExecutableFile(File):
+             return False
+         try:
+             if may_strip(dest):
++                print "strip", dest
+                 strip(dest)
+             if may_elfhack(dest):
++                print "elfhack", dest
+                 elfhack(dest)
+         except ErrorMessage:
+             os.remove(dest)
+diff -up mozilla-esr24/python/mozbuild/mozpack/mozjar.py.python mozilla-esr24/python/mozbuild/mozpack/mozjar.py
+--- mozilla-esr24/python/mozbuild/mozpack/mozjar.py.python	2013-09-11 05:22:49.000000000 +0200
++++ mozilla-esr24/python/mozbuild/mozpack/mozjar.py	2013-10-22 14:29:24.563993889 +0200
+@@ -10,7 +10,7 @@ from zipfile import (
+     ZIP_STORED,
+     ZIP_DEFLATED,
+ )
+-from collections import OrderedDict
++from ordereddict import OrderedDict
+ from urlparse import urlparse, ParseResult
+ import mozpack.path
+ 
+@@ -94,8 +94,6 @@ class JarStruct(object):
+             else:
+                 size = sizes[t]
+                 value = data[offset:offset + size]
+-                if isinstance(value, memoryview):
+-                    value = value.tobytes()
+             if not name in sizes:
+                 self._values[name] = value
+             else:
+@@ -122,8 +120,6 @@ class JarStruct(object):
+         assert data is not None
+         format, size = JarStruct.TYPE_MAPPING[type]
+         data = data[:size]
+-        if isinstance(data, memoryview):
+-            data = data.tobytes()
+         return struct.unpack('<' + format, data)[0], size
+ 
+     def serialize(self):
+@@ -261,12 +257,12 @@ class JarFileReader(object):
+         the file data.
+         '''
+         assert header['compression'] in [JAR_DEFLATED, JAR_STORED]
+-        self._data = data
+         # Copy some local file header fields.
+         for name in ['filename', 'compressed_size',
+                      'uncompressed_size', 'crc32']:
+             setattr(self, name, header[name])
+         self.compressed = header['compression'] == JAR_DEFLATED
++        self._data = data[:header['compressed_size']]
+ 
+     def read(self, length=-1):
+         '''
+@@ -316,9 +312,7 @@ class JarFileReader(object):
+             return self._uncompressed_data
+         data = self.compressed_data
+         if self.compressed:
+-            data = zlib.decompress(data.tobytes(), -MAX_WBITS)
+-        else:
+-            data = data.tobytes()
++            data = zlib.decompress(data, -MAX_WBITS)
+         if len(data) != self.uncompressed_size:
+             raise JarReaderError('Corrupted file? %s' % self.filename)
+         self._uncompressed_data = BytesIO(data)
+@@ -339,7 +333,7 @@ class JarReader(object):
+             data = fileobj.read()
+         else:
+             data = open(file, 'rb').read()
+-        self._data = memoryview(data)
++        self._data = buffer(data)
+         # The End of Central Directory Record has a variable size because of
+         # comments it may contain, so scan for it from the end of the file.
+         offset = -CDIR_END_SIZE
+@@ -661,8 +655,6 @@ class Deflater(object):
+         self._data.write(data)
+         if self.compress:
+             if self._deflater:
+-                if isinstance(data, memoryview):
+-                    data = data.tobytes()
+                 self._deflated.write(self._deflater.compress(data))
+             else:
+                 raise JarWriterError("Can't write after flush")
+diff -up mozilla-esr24/python/mozbuild/mozpack/unify.py.python mozilla-esr24/python/mozbuild/mozpack/unify.py
+--- mozilla-esr24/python/mozbuild/mozpack/unify.py.python	2013-09-11 05:22:49.000000000 +0200
++++ mozilla-esr24/python/mozbuild/mozpack/unify.py	2013-10-22 14:29:24.564993891 +0200
+@@ -19,7 +19,7 @@ import mozpack.path
+ import struct
+ import os
+ import subprocess
+-from collections import OrderedDict
++from ordereddict import OrderedDict
+ 
+ 
+ def may_unify_binary(file):
+diff -up mozilla-esr24/rebase/argparse.py.python mozilla-esr24/rebase/argparse.py
+--- mozilla-esr24/rebase/argparse.py.python	2013-10-22 16:49:19.310375183 +0200
++++ mozilla-esr24/rebase/argparse.py	2011-03-31 23:43:27.000000000 +0200
+@@ -0,0 +1,2362 @@
++# Author: Steven J. Bethard <steven.bethard at gmail.com>.
++
++"""Command-line parsing library
++
++This module is an optparse-inspired command-line parsing library that:
++
++    - handles both optional and positional arguments
++    - produces highly informative usage messages
++    - supports parsers that dispatch to sub-parsers
++
++The following is a simple usage example that sums integers from the
++command-line and writes the result to a file::
++
++    parser = argparse.ArgumentParser(
++        description='sum the integers at the command line')
++    parser.add_argument(
++        'integers', metavar='int', nargs='+', type=int,
++        help='an integer to be summed')
++    parser.add_argument(
++        '--log', default=sys.stdout, type=argparse.FileType('w'),
++        help='the file where the sum should be written')
++    args = parser.parse_args()
++    args.log.write('%s' % sum(args.integers))
++    args.log.close()
++
++The module contains the following public classes:
++
++    - ArgumentParser -- The main entry point for command-line parsing. As the
++        example above shows, the add_argument() method is used to populate
++        the parser with actions for optional and positional arguments. Then
++        the parse_args() method is invoked to convert the args at the
++        command-line into an object with attributes.
++
++    - ArgumentError -- The exception raised by ArgumentParser objects when
++        there are errors with the parser's actions. Errors raised while
++        parsing the command-line are caught by ArgumentParser and emitted
++        as command-line messages.
++
++    - FileType -- A factory for defining types of files to be created. As the
++        example above shows, instances of FileType are typically passed as
++        the type= argument of add_argument() calls.
++
++    - Action -- The base class for parser actions. Typically actions are
++        selected by passing strings like 'store_true' or 'append_const' to
++        the action= argument of add_argument(). However, for greater
++        customization of ArgumentParser actions, subclasses of Action may
++        be defined and passed as the action= argument.
++
++    - HelpFormatter, RawDescriptionHelpFormatter, RawTextHelpFormatter,
++        ArgumentDefaultsHelpFormatter -- Formatter classes which
++        may be passed as the formatter_class= argument to the
++        ArgumentParser constructor. HelpFormatter is the default,
++        RawDescriptionHelpFormatter and RawTextHelpFormatter tell the parser
++        not to change the formatting for help text, and
++        ArgumentDefaultsHelpFormatter adds information about argument defaults
++        to the help.
++
++All other classes in this module are considered implementation details.
++(Also note that HelpFormatter and RawDescriptionHelpFormatter are only
++considered public as object names -- the API of the formatter objects is
++still considered an implementation detail.)
++"""
++
++__version__ = '1.2.1'
++__all__ = [
++    'ArgumentParser',
++    'ArgumentError',
++    'ArgumentTypeError',
++    'FileType',
++    'HelpFormatter',
++    'ArgumentDefaultsHelpFormatter',
++    'RawDescriptionHelpFormatter',
++    'RawTextHelpFormatter',
++    'Namespace',
++    'Action',
++    'ONE_OR_MORE',
++    'OPTIONAL',
++    'PARSER',
++    'REMAINDER',
++    'SUPPRESS',
++    'ZERO_OR_MORE',
++]
++
++
++import copy as _copy
++import os as _os
++import re as _re
++import sys as _sys
++import textwrap as _textwrap
++
++from gettext import gettext as _
++
++try:
++    set
++except NameError:
++    # for python < 2.4 compatibility (sets module is there since 2.3):
++    from sets import Set as set
++
++try:
++    basestring
++except NameError:
++    basestring = str
++
++try:
++    sorted
++except NameError:
++    # for python < 2.4 compatibility:
++    def sorted(iterable, reverse=False):
++        result = list(iterable)
++        result.sort()
++        if reverse:
++            result.reverse()
++        return result
++
++
++def _callable(obj):
++    return hasattr(obj, '__call__') or hasattr(obj, '__bases__')
++
++
++SUPPRESS = '==SUPPRESS=='
++
++OPTIONAL = '?'
++ZERO_OR_MORE = '*'
++ONE_OR_MORE = '+'
++PARSER = 'A...'
++REMAINDER = '...'
++_UNRECOGNIZED_ARGS_ATTR = '_unrecognized_args'
++
++# =============================
++# Utility functions and classes
++# =============================
++
++class _AttributeHolder(object):
++    """Abstract base class that provides __repr__.
++
++    The __repr__ method returns a string in the format::
++        ClassName(attr=name, attr=name, ...)
++    The attributes are determined either by a class-level attribute,
++    '_kwarg_names', or by inspecting the instance __dict__.
++    """
++
++    def __repr__(self):
++        type_name = type(self).__name__
++        arg_strings = []
++        for arg in self._get_args():
++            arg_strings.append(repr(arg))
++        for name, value in self._get_kwargs():
++            arg_strings.append('%s=%r' % (name, value))
++        return '%s(%s)' % (type_name, ', '.join(arg_strings))
++
++    def _get_kwargs(self):
++        return sorted(self.__dict__.items())
++
++    def _get_args(self):
++        return []
++
++
++def _ensure_value(namespace, name, value):
++    if getattr(namespace, name, None) is None:
++        setattr(namespace, name, value)
++    return getattr(namespace, name)
++
++
++# ===============
++# Formatting Help
++# ===============
++
++class HelpFormatter(object):
++    """Formatter for generating usage messages and argument help strings.
++
++    Only the name of this class is considered a public API. All the methods
++    provided by the class are considered an implementation detail.
++    """
++
++    def __init__(self,
++                 prog,
++                 indent_increment=2,
++                 max_help_position=24,
++                 width=None):
++
++        # default setting for width
++        if width is None:
++            try:
++                width = int(_os.environ['COLUMNS'])
++            except (KeyError, ValueError):
++                width = 80
++            width -= 2
++
++        self._prog = prog
++        self._indent_increment = indent_increment
++        self._max_help_position = max_help_position
++        self._width = width
++
++        self._current_indent = 0
++        self._level = 0
++        self._action_max_length = 0
++
++        self._root_section = self._Section(self, None)
++        self._current_section = self._root_section
++
++        self._whitespace_matcher = _re.compile(r'\s+')
++        self._long_break_matcher = _re.compile(r'\n\n\n+')
++
++    # ===============================
++    # Section and indentation methods
++    # ===============================
++    def _indent(self):
++        self._current_indent += self._indent_increment
++        self._level += 1
++
++    def _dedent(self):
++        self._current_indent -= self._indent_increment
++        assert self._current_indent >= 0, 'Indent decreased below 0.'
++        self._level -= 1
++
++    class _Section(object):
++
++        def __init__(self, formatter, parent, heading=None):
++            self.formatter = formatter
++            self.parent = parent
++            self.heading = heading
++            self.items = []
++
++        def format_help(self):
++            # format the indented section
++            if self.parent is not None:
++                self.formatter._indent()
++            join = self.formatter._join_parts
++            for func, args in self.items:
++                func(*args)
++            item_help = join([func(*args) for func, args in self.items])
++            if self.parent is not None:
++                self.formatter._dedent()
++
++            # return nothing if the section was empty
++            if not item_help:
++                return ''
++
++            # add the heading if the section was non-empty
++            if self.heading is not SUPPRESS and self.heading is not None:
++                current_indent = self.formatter._current_indent
++                heading = '%*s%s:\n' % (current_indent, '', self.heading)
++            else:
++                heading = ''
++
++            # join the section-initial newline, the heading and the help
++            return join(['\n', heading, item_help, '\n'])
++
++    def _add_item(self, func, args):
++        self._current_section.items.append((func, args))
++
++    # ========================
++    # Message building methods
++    # ========================
++    def start_section(self, heading):
++        self._indent()
++        section = self._Section(self, self._current_section, heading)
++        self._add_item(section.format_help, [])
++        self._current_section = section
++
++    def end_section(self):
++        self._current_section = self._current_section.parent
++        self._dedent()
++
++    def add_text(self, text):
++        if text is not SUPPRESS and text is not None:
++            self._add_item(self._format_text, [text])
++
++    def add_usage(self, usage, actions, groups, prefix=None):
++        if usage is not SUPPRESS:
++            args = usage, actions, groups, prefix
++            self._add_item(self._format_usage, args)
++
++    def add_argument(self, action):
++        if action.help is not SUPPRESS:
++
++            # find all invocations
++            get_invocation = self._format_action_invocation
++            invocations = [get_invocation(action)]
++            for subaction in self._iter_indented_subactions(action):
++                invocations.append(get_invocation(subaction))
++
++            # update the maximum item length
++            invocation_length = max([len(s) for s in invocations])
++            action_length = invocation_length + self._current_indent
++            self._action_max_length = max(self._action_max_length,
++                                          action_length)
++
++            # add the item to the list
++            self._add_item(self._format_action, [action])
++
++    def add_arguments(self, actions):
++        for action in actions:
++            self.add_argument(action)
++
++    # =======================
++    # Help-formatting methods
++    # =======================
++    def format_help(self):
++        help = self._root_section.format_help()
++        if help:
++            help = self._long_break_matcher.sub('\n\n', help)
++            help = help.strip('\n') + '\n'
++        return help
++
++    def _join_parts(self, part_strings):
++        return ''.join([part
++                        for part in part_strings
++                        if part and part is not SUPPRESS])
++
++    def _format_usage(self, usage, actions, groups, prefix):
++        if prefix is None:
++            prefix = _('usage: ')
++
++        # if usage is specified, use that
++        if usage is not None:
++            usage = usage % dict(prog=self._prog)
++
++        # if no optionals or positionals are available, usage is just prog
++        elif usage is None and not actions:
++            usage = '%(prog)s' % dict(prog=self._prog)
++
++        # if optionals and positionals are available, calculate usage
++        elif usage is None:
++            prog = '%(prog)s' % dict(prog=self._prog)
++
++            # split optionals from positionals
++            optionals = []
++            positionals = []
++            for action in actions:
++                if action.option_strings:
++                    optionals.append(action)
++                else:
++                    positionals.append(action)
++
++            # build full usage string
++            format = self._format_actions_usage
++            action_usage = format(optionals + positionals, groups)
++            usage = ' '.join([s for s in [prog, action_usage] if s])
++
++            # wrap the usage parts if it's too long
++            text_width = self._width - self._current_indent
++            if len(prefix) + len(usage) > text_width:
++
++                # break usage into wrappable parts
++                part_regexp = r'\(.*?\)+|\[.*?\]+|\S+'
++                opt_usage = format(optionals, groups)
++                pos_usage = format(positionals, groups)
++                opt_parts = _re.findall(part_regexp, opt_usage)
++                pos_parts = _re.findall(part_regexp, pos_usage)
++                assert ' '.join(opt_parts) == opt_usage
++                assert ' '.join(pos_parts) == pos_usage
++
++                # helper for wrapping lines
++                def get_lines(parts, indent, prefix=None):
++                    lines = []
++                    line = []
++                    if prefix is not None:
++                        line_len = len(prefix) - 1
++                    else:
++                        line_len = len(indent) - 1
++                    for part in parts:
++                        if line_len + 1 + len(part) > text_width:
++                            lines.append(indent + ' '.join(line))
++                            line = []
++                            line_len = len(indent) - 1
++                        line.append(part)
++                        line_len += len(part) + 1
++                    if line:
++                        lines.append(indent + ' '.join(line))
++                    if prefix is not None:
++                        lines[0] = lines[0][len(indent):]
++                    return lines
++
++                # if prog is short, follow it with optionals or positionals
++                if len(prefix) + len(prog) <= 0.75 * text_width:
++                    indent = ' ' * (len(prefix) + len(prog) + 1)
++                    if opt_parts:
++                        lines = get_lines([prog] + opt_parts, indent, prefix)
++                        lines.extend(get_lines(pos_parts, indent))
++                    elif pos_parts:
++                        lines = get_lines([prog] + pos_parts, indent, prefix)
++                    else:
++                        lines = [prog]
++
++                # if prog is long, put it on its own line
++                else:
++                    indent = ' ' * len(prefix)
++                    parts = opt_parts + pos_parts
++                    lines = get_lines(parts, indent)
++                    if len(lines) > 1:
++                        lines = []
++                        lines.extend(get_lines(opt_parts, indent))
++                        lines.extend(get_lines(pos_parts, indent))
++                    lines = [prog] + lines
++
++                # join lines into usage
++                usage = '\n'.join(lines)
++
++        # prefix with 'usage:'
++        return '%s%s\n\n' % (prefix, usage)
++
++    def _format_actions_usage(self, actions, groups):
++        # find group indices and identify actions in groups
++        group_actions = set()
++        inserts = {}
++        for group in groups:
++            try:
++                start = actions.index(group._group_actions[0])
++            except ValueError:
++                continue
++            else:
++                end = start + len(group._group_actions)
++                if actions[start:end] == group._group_actions:
++                    for action in group._group_actions:
++                        group_actions.add(action)
++                    if not group.required:
++                        if start in inserts:
++                            inserts[start] += ' ['
++                        else:
++                            inserts[start] = '['
++                        inserts[end] = ']'
++                    else:
++                        if start in inserts:
++                            inserts[start] += ' ('
++                        else:
++                            inserts[start] = '('
++                        inserts[end] = ')'
++                    for i in range(start + 1, end):
++                        inserts[i] = '|'
++
++        # collect all actions format strings
++        parts = []
++        for i, action in enumerate(actions):
++
++            # suppressed arguments are marked with None
++            # remove | separators for suppressed arguments
++            if action.help is SUPPRESS:
++                parts.append(None)
++                if inserts.get(i) == '|':
++                    inserts.pop(i)
++                elif inserts.get(i + 1) == '|':
++                    inserts.pop(i + 1)
++
++            # produce all arg strings
++            elif not action.option_strings:
++                part = self._format_args(action, action.dest)
++
++                # if it's in a group, strip the outer []
++                if action in group_actions:
++                    if part[0] == '[' and part[-1] == ']':
++                        part = part[1:-1]
++
++                # add the action string to the list
++                parts.append(part)
++
++            # produce the first way to invoke the option in brackets
++            else:
++                option_string = action.option_strings[0]
++
++                # if the Optional doesn't take a value, format is:
++                #    -s or --long
++                if action.nargs == 0:
++                    part = '%s' % option_string
++
++                # if the Optional takes a value, format is:
++                #    -s ARGS or --long ARGS
++                else:
++                    default = action.dest.upper()
++                    args_string = self._format_args(action, default)
++                    part = '%s %s' % (option_string, args_string)
++
++                # make it look optional if it's not required or in a group
++                if not action.required and action not in group_actions:
++                    part = '[%s]' % part
++
++                # add the action string to the list
++                parts.append(part)
++
++        # insert things at the necessary indices
++        for i in sorted(inserts, reverse=True):
++            parts[i:i] = [inserts[i]]
++
++        # join all the action items with spaces
++        text = ' '.join([item for item in parts if item is not None])
++
++        # clean up separators for mutually exclusive groups
++        open = r'[\[(]'
++        close = r'[\])]'
++        text = _re.sub(r'(%s) ' % open, r'\1', text)
++        text = _re.sub(r' (%s)' % close, r'\1', text)
++        text = _re.sub(r'%s *%s' % (open, close), r'', text)
++        text = _re.sub(r'\(([^|]*)\)', r'\1', text)
++        text = text.strip()
++
++        # return the text
++        return text
++
++    def _format_text(self, text):
++        if '%(prog)' in text:
++            text = text % dict(prog=self._prog)
++        text_width = self._width - self._current_indent
++        indent = ' ' * self._current_indent
++        return self._fill_text(text, text_width, indent) + '\n\n'
++
++    def _format_action(self, action):
++        # determine the required width and the entry label
++        help_position = min(self._action_max_length + 2,
++                            self._max_help_position)
++        help_width = self._width - help_position
++        action_width = help_position - self._current_indent - 2
++        action_header = self._format_action_invocation(action)
++
++        # ho nelp; start on same line and add a final newline
++        if not action.help:
++            tup = self._current_indent, '', action_header
++            action_header = '%*s%s\n' % tup
++
++        # short action name; start on the same line and pad two spaces
++        elif len(action_header) <= action_width:
++            tup = self._current_indent, '', action_width, action_header
++            action_header = '%*s%-*s  ' % tup
++            indent_first = 0
++
++        # long action name; start on the next line
++        else:
++            tup = self._current_indent, '', action_header
++            action_header = '%*s%s\n' % tup
++            indent_first = help_position
++
++        # collect the pieces of the action help
++        parts = [action_header]
++
++        # if there was help for the action, add lines of help text
++        if action.help:
++            help_text = self._expand_help(action)
++            help_lines = self._split_lines(help_text, help_width)
++            parts.append('%*s%s\n' % (indent_first, '', help_lines[0]))
++            for line in help_lines[1:]:
++                parts.append('%*s%s\n' % (help_position, '', line))
++
++        # or add a newline if the description doesn't end with one
++        elif not action_header.endswith('\n'):
++            parts.append('\n')
++
++        # if there are any sub-actions, add their help as well
++        for subaction in self._iter_indented_subactions(action):
++            parts.append(self._format_action(subaction))
++
++        # return a single string
++        return self._join_parts(parts)
++
++    def _format_action_invocation(self, action):
++        if not action.option_strings:
++            metavar, = self._metavar_formatter(action, action.dest)(1)
++            return metavar
++
++        else:
++            parts = []
++
++            # if the Optional doesn't take a value, format is:
++            #    -s, --long
++            if action.nargs == 0:
++                parts.extend(action.option_strings)
++
++            # if the Optional takes a value, format is:
++            #    -s ARGS, --long ARGS
++            else:
++                default = action.dest.upper()
++                args_string = self._format_args(action, default)
++                for option_string in action.option_strings:
++                    parts.append('%s %s' % (option_string, args_string))
++
++            return ', '.join(parts)
++
++    def _metavar_formatter(self, action, default_metavar):
++        if action.metavar is not None:
++            result = action.metavar
++        elif action.choices is not None:
++            choice_strs = [str(choice) for choice in action.choices]
++            result = '{%s}' % ','.join(choice_strs)
++        else:
++            result = default_metavar
++
++        def format(tuple_size):
++            if isinstance(result, tuple):
++                return result
++            else:
++                return (result, ) * tuple_size
++        return format
++
++    def _format_args(self, action, default_metavar):
++        get_metavar = self._metavar_formatter(action, default_metavar)
++        if action.nargs is None:
++            result = '%s' % get_metavar(1)
++        elif action.nargs == OPTIONAL:
++            result = '[%s]' % get_metavar(1)
++        elif action.nargs == ZERO_OR_MORE:
++            result = '[%s [%s ...]]' % get_metavar(2)
++        elif action.nargs == ONE_OR_MORE:
++            result = '%s [%s ...]' % get_metavar(2)
++        elif action.nargs == REMAINDER:
++            result = '...'
++        elif action.nargs == PARSER:
++            result = '%s ...' % get_metavar(1)
++        else:
++            formats = ['%s' for _ in range(action.nargs)]
++            result = ' '.join(formats) % get_metavar(action.nargs)
++        return result
++
++    def _expand_help(self, action):
++        params = dict(vars(action), prog=self._prog)
++        for name in list(params):
++            if params[name] is SUPPRESS:
++                del params[name]
++        for name in list(params):
++            if hasattr(params[name], '__name__'):
++                params[name] = params[name].__name__
++        if params.get('choices') is not None:
++            choices_str = ', '.join([str(c) for c in params['choices']])
++            params['choices'] = choices_str
++        return self._get_help_string(action) % params
++
++    def _iter_indented_subactions(self, action):
++        try:
++            get_subactions = action._get_subactions
++        except AttributeError:
++            pass
++        else:
++            self._indent()
++            for subaction in get_subactions():
++                yield subaction
++            self._dedent()
++
++    def _split_lines(self, text, width):
++        text = self._whitespace_matcher.sub(' ', text).strip()
++        return _textwrap.wrap(text, width)
++
++    def _fill_text(self, text, width, indent):
++        text = self._whitespace_matcher.sub(' ', text).strip()
++        return _textwrap.fill(text, width, initial_indent=indent,
++                                           subsequent_indent=indent)
++
++    def _get_help_string(self, action):
++        return action.help
++
++
++class RawDescriptionHelpFormatter(HelpFormatter):
++    """Help message formatter which retains any formatting in descriptions.
++
++    Only the name of this class is considered a public API. All the methods
++    provided by the class are considered an implementation detail.
++    """
++
++    def _fill_text(self, text, width, indent):
++        return ''.join([indent + line for line in text.splitlines(True)])
++
++
++class RawTextHelpFormatter(RawDescriptionHelpFormatter):
++    """Help message formatter which retains formatting of all help text.
++
++    Only the name of this class is considered a public API. All the methods
++    provided by the class are considered an implementation detail.
++    """
++
++    def _split_lines(self, text, width):
++        return text.splitlines()
++
++
++class ArgumentDefaultsHelpFormatter(HelpFormatter):
++    """Help message formatter which adds default values to argument help.
++
++    Only the name of this class is considered a public API. All the methods
++    provided by the class are considered an implementation detail.
++    """
++
++    def _get_help_string(self, action):
++        help = action.help
++        if '%(default)' not in action.help:
++            if action.default is not SUPPRESS:
++                defaulting_nargs = [OPTIONAL, ZERO_OR_MORE]
++                if action.option_strings or action.nargs in defaulting_nargs:
++                    help += ' (default: %(default)s)'
++        return help
++
++
++# =====================
++# Options and Arguments
++# =====================
++
++def _get_action_name(argument):
++    if argument is None:
++        return None
++    elif argument.option_strings:
++        return  '/'.join(argument.option_strings)
++    elif argument.metavar not in (None, SUPPRESS):
++        return argument.metavar
++    elif argument.dest not in (None, SUPPRESS):
++        return argument.dest
++    else:
++        return None
++
++
++class ArgumentError(Exception):
++    """An error from creating or using an argument (optional or positional).
++
++    The string value of this exception is the message, augmented with
++    information about the argument that caused it.
++    """
++
++    def __init__(self, argument, message):
++        self.argument_name = _get_action_name(argument)
++        self.message = message
++
++    def __str__(self):
++        if self.argument_name is None:
++            format = '%(message)s'
++        else:
++            format = 'argument %(argument_name)s: %(message)s'
++        return format % dict(message=self.message,
++                             argument_name=self.argument_name)
++
++
++class ArgumentTypeError(Exception):
++    """An error from trying to convert a command line string to a type."""
++    pass
++
++
++# ==============
++# Action classes
++# ==============
++
++class Action(_AttributeHolder):
++    """Information about how to convert command line strings to Python objects.
++
++    Action objects are used by an ArgumentParser to represent the information
++    needed to parse a single argument from one or more strings from the
++    command line. The keyword arguments to the Action constructor are also
++    all attributes of Action instances.
++
++    Keyword Arguments:
++
++        - option_strings -- A list of command-line option strings which
++            should be associated with this action.
++
++        - dest -- The name of the attribute to hold the created object(s)
++
++        - nargs -- The number of command-line arguments that should be
++            consumed. By default, one argument will be consumed and a single
++            value will be produced.  Other values include:
++                - N (an integer) consumes N arguments (and produces a list)
++                - '?' consumes zero or one arguments
++                - '*' consumes zero or more arguments (and produces a list)
++                - '+' consumes one or more arguments (and produces a list)
++            Note that the difference between the default and nargs=1 is that
++            with the default, a single value will be produced, while with
++            nargs=1, a list containing a single value will be produced.
++
++        - const -- The value to be produced if the option is specified and the
++            option uses an action that takes no values.
++
++        - default -- The value to be produced if the option is not specified.
++
++        - type -- The type which the command-line arguments should be converted
++            to, should be one of 'string', 'int', 'float', 'complex' or a
++            callable object that accepts a single string argument. If None,
++            'string' is assumed.
++
++        - choices -- A container of values that should be allowed. If not None,
++            after a command-line argument has been converted to the appropriate
++            type, an exception will be raised if it is not a member of this
++            collection.
++
++        - required -- True if the action must always be specified at the
++            command line. This is only meaningful for optional command-line
++            arguments.
++
++        - help -- The help string describing the argument.
++
++        - metavar -- The name to be used for the option's argument with the
++            help string. If None, the 'dest' value will be used as the name.
++    """
++
++    def __init__(self,
++                 option_strings,
++                 dest,
++                 nargs=None,
++                 const=None,
++                 default=None,
++                 type=None,
++                 choices=None,
++                 required=False,
++                 help=None,
++                 metavar=None):
++        self.option_strings = option_strings
++        self.dest = dest
++        self.nargs = nargs
++        self.const = const
++        self.default = default
++        self.type = type
++        self.choices = choices
++        self.required = required
++        self.help = help
++        self.metavar = metavar
++
++    def _get_kwargs(self):
++        names = [
++            'option_strings',
++            'dest',
++            'nargs',
++            'const',
++            'default',
++            'type',
++            'choices',
++            'help',
++            'metavar',
++        ]
++        return [(name, getattr(self, name)) for name in names]
++
++    def __call__(self, parser, namespace, values, option_string=None):
++        raise NotImplementedError(_('.__call__() not defined'))
++
++
++class _StoreAction(Action):
++
++    def __init__(self,
++                 option_strings,
++                 dest,
++                 nargs=None,
++                 const=None,
++                 default=None,
++                 type=None,
++                 choices=None,
++                 required=False,
++                 help=None,
++                 metavar=None):
++        if nargs == 0:
++            raise ValueError('nargs for store actions must be > 0; if you '
++                             'have nothing to store, actions such as store '
++                             'true or store const may be more appropriate')
++        if const is not None and nargs != OPTIONAL:
++            raise ValueError('nargs must be %r to supply const' % OPTIONAL)
++        super(_StoreAction, self).__init__(
++            option_strings=option_strings,
++            dest=dest,
++            nargs=nargs,
++            const=const,
++            default=default,
++            type=type,
++            choices=choices,
++            required=required,
++            help=help,
++            metavar=metavar)
++
++    def __call__(self, parser, namespace, values, option_string=None):
++        setattr(namespace, self.dest, values)
++
++
++class _StoreConstAction(Action):
++
++    def __init__(self,
++                 option_strings,
++                 dest,
++                 const,
++                 default=None,
++                 required=False,
++                 help=None,
++                 metavar=None):
++        super(_StoreConstAction, self).__init__(
++            option_strings=option_strings,
++            dest=dest,
++            nargs=0,
++            const=const,
++            default=default,
++            required=required,
++            help=help)
++
++    def __call__(self, parser, namespace, values, option_string=None):
++        setattr(namespace, self.dest, self.const)
++
++
++class _StoreTrueAction(_StoreConstAction):
++
++    def __init__(self,
++                 option_strings,
++                 dest,
++                 default=False,
++                 required=False,
++                 help=None):
++        super(_StoreTrueAction, self).__init__(
++            option_strings=option_strings,
++            dest=dest,
++            const=True,
++            default=default,
++            required=required,
++            help=help)
++
++
++class _StoreFalseAction(_StoreConstAction):
++
++    def __init__(self,
++                 option_strings,
++                 dest,
++                 default=True,
++                 required=False,
++                 help=None):
++        super(_StoreFalseAction, self).__init__(
++            option_strings=option_strings,
++            dest=dest,
++            const=False,
++            default=default,
++            required=required,
++            help=help)
++
++
++class _AppendAction(Action):
++
++    def __init__(self,
++                 option_strings,
++                 dest,
++                 nargs=None,
++                 const=None,
++                 default=None,
++                 type=None,
++                 choices=None,
++                 required=False,
++                 help=None,
++                 metavar=None):
++        if nargs == 0:
++            raise ValueError('nargs for append actions must be > 0; if arg '
++                             'strings are not supplying the value to append, '
++                             'the append const action may be more appropriate')
++        if const is not None and nargs != OPTIONAL:
++            raise ValueError('nargs must be %r to supply const' % OPTIONAL)
++        super(_AppendAction, self).__init__(
++            option_strings=option_strings,
++            dest=dest,
++            nargs=nargs,
++            const=const,
++            default=default,
++            type=type,
++            choices=choices,
++            required=required,
++            help=help,
++            metavar=metavar)
++
++    def __call__(self, parser, namespace, values, option_string=None):
++        items = _copy.copy(_ensure_value(namespace, self.dest, []))
++        items.append(values)
++        setattr(namespace, self.dest, items)
++
++
++class _AppendConstAction(Action):
++
++    def __init__(self,
++                 option_strings,
++                 dest,
++                 const,
++                 default=None,
++                 required=False,
++                 help=None,
++                 metavar=None):
++        super(_AppendConstAction, self).__init__(
++            option_strings=option_strings,
++            dest=dest,
++            nargs=0,
++            const=const,
++            default=default,
++            required=required,
++            help=help,
++            metavar=metavar)
++
++    def __call__(self, parser, namespace, values, option_string=None):
++        items = _copy.copy(_ensure_value(namespace, self.dest, []))
++        items.append(self.const)
++        setattr(namespace, self.dest, items)
++
++
++class _CountAction(Action):
++
++    def __init__(self,
++                 option_strings,
++                 dest,
++                 default=None,
++                 required=False,
++                 help=None):
++        super(_CountAction, self).__init__(
++            option_strings=option_strings,
++            dest=dest,
++            nargs=0,
++            default=default,
++            required=required,
++            help=help)
++
++    def __call__(self, parser, namespace, values, option_string=None):
++        new_count = _ensure_value(namespace, self.dest, 0) + 1
++        setattr(namespace, self.dest, new_count)
++
++
++class _HelpAction(Action):
++
++    def __init__(self,
++                 option_strings,
++                 dest=SUPPRESS,
++                 default=SUPPRESS,
++                 help=None):
++        super(_HelpAction, self).__init__(
++            option_strings=option_strings,
++            dest=dest,
++            default=default,
++            nargs=0,
++            help=help)
++
++    def __call__(self, parser, namespace, values, option_string=None):
++        parser.print_help()
++        parser.exit()
++
++
++class _VersionAction(Action):
++
++    def __init__(self,
++                 option_strings,
++                 version=None,
++                 dest=SUPPRESS,
++                 default=SUPPRESS,
++                 help="show program's version number and exit"):
++        super(_VersionAction, self).__init__(
++            option_strings=option_strings,
++            dest=dest,
++            default=default,
++            nargs=0,
++            help=help)
++        self.version = version
++
++    def __call__(self, parser, namespace, values, option_string=None):
++        version = self.version
++        if version is None:
++            version = parser.version
++        formatter = parser._get_formatter()
++        formatter.add_text(version)
++        parser.exit(message=formatter.format_help())
++
++
++class _SubParsersAction(Action):
++
++    class _ChoicesPseudoAction(Action):
++
++        def __init__(self, name, help):
++            sup = super(_SubParsersAction._ChoicesPseudoAction, self)
++            sup.__init__(option_strings=[], dest=name, help=help)
++
++    def __init__(self,
++                 option_strings,
++                 prog,
++                 parser_class,
++                 dest=SUPPRESS,
++                 help=None,
++                 metavar=None):
++
++        self._prog_prefix = prog
++        self._parser_class = parser_class
++        self._name_parser_map = {}
++        self._choices_actions = []
++
++        super(_SubParsersAction, self).__init__(
++            option_strings=option_strings,
++            dest=dest,
++            nargs=PARSER,
++            choices=self._name_parser_map,
++            help=help,
++            metavar=metavar)
++
++    def add_parser(self, name, **kwargs):
++        # set prog from the existing prefix
++        if kwargs.get('prog') is None:
++            kwargs['prog'] = '%s %s' % (self._prog_prefix, name)
++
++        # create a pseudo-action to hold the choice help
++        if 'help' in kwargs:
++            help = kwargs.pop('help')
++            choice_action = self._ChoicesPseudoAction(name, help)
++            self._choices_actions.append(choice_action)
++
++        # create the parser and add it to the map
++        parser = self._parser_class(**kwargs)
++        self._name_parser_map[name] = parser
++        return parser
++
++    def _get_subactions(self):
++        return self._choices_actions
++
++    def __call__(self, parser, namespace, values, option_string=None):
++        parser_name = values[0]
++        arg_strings = values[1:]
++
++        # set the parser name if requested
++        if self.dest is not SUPPRESS:
++            setattr(namespace, self.dest, parser_name)
++
++        # select the parser
++        try:
++            parser = self._name_parser_map[parser_name]
++        except KeyError:
++            tup = parser_name, ', '.join(self._name_parser_map)
++            msg = _('unknown parser %r (choices: %s)' % tup)
++            raise ArgumentError(self, msg)
++
++        # parse all the remaining options into the namespace
++        # store any unrecognized options on the object, so that the top
++        # level parser can decide what to do with them
++        namespace, arg_strings = parser.parse_known_args(arg_strings, namespace)
++        if arg_strings:
++            vars(namespace).setdefault(_UNRECOGNIZED_ARGS_ATTR, [])
++            getattr(namespace, _UNRECOGNIZED_ARGS_ATTR).extend(arg_strings)
++
++
++# ==============
++# Type classes
++# ==============
++
++class FileType(object):
++    """Factory for creating file object types
++
++    Instances of FileType are typically passed as type= arguments to the
++    ArgumentParser add_argument() method.
++
++    Keyword Arguments:
++        - mode -- A string indicating how the file is to be opened. Accepts the
++            same values as the builtin open() function.
++        - bufsize -- The file's desired buffer size. Accepts the same values as
++            the builtin open() function.
++    """
++
++    def __init__(self, mode='r', bufsize=None):
++        self._mode = mode
++        self._bufsize = bufsize
++
++    def __call__(self, string):
++        # the special argument "-" means sys.std{in,out}
++        if string == '-':
++            if 'r' in self._mode:
++                return _sys.stdin
++            elif 'w' in self._mode:
++                return _sys.stdout
++            else:
++                msg = _('argument "-" with mode %r' % self._mode)
++                raise ValueError(msg)
++
++        # all other arguments are used as file names
++        if self._bufsize:
++            return open(string, self._mode, self._bufsize)
++        else:
++            return open(string, self._mode)
++
++    def __repr__(self):
++        args = [self._mode, self._bufsize]
++        args_str = ', '.join([repr(arg) for arg in args if arg is not None])
++        return '%s(%s)' % (type(self).__name__, args_str)
++
++# ===========================
++# Optional and Positional Parsing
++# ===========================
++
++class Namespace(_AttributeHolder):
++    """Simple object for storing attributes.
++
++    Implements equality by attribute names and values, and provides a simple
++    string representation.
++    """
++
++    def __init__(self, **kwargs):
++        for name in kwargs:
++            setattr(self, name, kwargs[name])
++
++    __hash__ = None
++
++    def __eq__(self, other):
++        return vars(self) == vars(other)
++
++    def __ne__(self, other):
++        return not (self == other)
++
++    def __contains__(self, key):
++        return key in self.__dict__
++
++
++class _ActionsContainer(object):
++
++    def __init__(self,
++                 description,
++                 prefix_chars,
++                 argument_default,
++                 conflict_handler):
++        super(_ActionsContainer, self).__init__()
++
++        self.description = description
++        self.argument_default = argument_default
++        self.prefix_chars = prefix_chars
++        self.conflict_handler = conflict_handler
++
++        # set up registries
++        self._registries = {}
++
++        # register actions
++        self.register('action', None, _StoreAction)
++        self.register('action', 'store', _StoreAction)
++        self.register('action', 'store_const', _StoreConstAction)
++        self.register('action', 'store_true', _StoreTrueAction)
++        self.register('action', 'store_false', _StoreFalseAction)
++        self.register('action', 'append', _AppendAction)
++        self.register('action', 'append_const', _AppendConstAction)
++        self.register('action', 'count', _CountAction)
++        self.register('action', 'help', _HelpAction)
++        self.register('action', 'version', _VersionAction)
++        self.register('action', 'parsers', _SubParsersAction)
++
++        # raise an exception if the conflict handler is invalid
++        self._get_handler()
++
++        # action storage
++        self._actions = []
++        self._option_string_actions = {}
++
++        # groups
++        self._action_groups = []
++        self._mutually_exclusive_groups = []
++
++        # defaults storage
++        self._defaults = {}
++
++        # determines whether an "option" looks like a negative number
++        self._negative_number_matcher = _re.compile(r'^-\d+$|^-\d*\.\d+$')
++
++        # whether or not there are any optionals that look like negative
++        # numbers -- uses a list so it can be shared and edited
++        self._has_negative_number_optionals = []
++
++    # ====================
++    # Registration methods
++    # ====================
++    def register(self, registry_name, value, object):
++        registry = self._registries.setdefault(registry_name, {})
++        registry[value] = object
++
++    def _registry_get(self, registry_name, value, default=None):
++        return self._registries[registry_name].get(value, default)
++
++    # ==================================
++    # Namespace default accessor methods
++    # ==================================
++    def set_defaults(self, **kwargs):
++        self._defaults.update(kwargs)
++
++        # if these defaults match any existing arguments, replace
++        # the previous default on the object with the new one
++        for action in self._actions:
++            if action.dest in kwargs:
++                action.default = kwargs[action.dest]
++
++    def get_default(self, dest):
++        for action in self._actions:
++            if action.dest == dest and action.default is not None:
++                return action.default
++        return self._defaults.get(dest, None)
++
++
++    # =======================
++    # Adding argument actions
++    # =======================
++    def add_argument(self, *args, **kwargs):
++        """
++        add_argument(dest, ..., name=value, ...)
++        add_argument(option_string, option_string, ..., name=value, ...)
++        """
++
++        # if no positional args are supplied or only one is supplied and
++        # it doesn't look like an option string, parse a positional
++        # argument
++        chars = self.prefix_chars
++        if not args or len(args) == 1 and args[0][0] not in chars:
++            if args and 'dest' in kwargs:
++                raise ValueError('dest supplied twice for positional argument')
++            kwargs = self._get_positional_kwargs(*args, **kwargs)
++
++        # otherwise, we're adding an optional argument
++        else:
++            kwargs = self._get_optional_kwargs(*args, **kwargs)
++
++        # if no default was supplied, use the parser-level default
++        if 'default' not in kwargs:
++            dest = kwargs['dest']
++            if dest in self._defaults:
++                kwargs['default'] = self._defaults[dest]
++            elif self.argument_default is not None:
++                kwargs['default'] = self.argument_default
++
++        # create the action object, and add it to the parser
++        action_class = self._pop_action_class(kwargs)
++        if not _callable(action_class):
++            raise ValueError('unknown action "%s"' % action_class)
++        action = action_class(**kwargs)
++
++        # raise an error if the action type is not callable
++        type_func = self._registry_get('type', action.type, action.type)
++        if not _callable(type_func):
++            raise ValueError('%r is not callable' % type_func)
++
++        return self._add_action(action)
++
++    def add_argument_group(self, *args, **kwargs):
++        group = _ArgumentGroup(self, *args, **kwargs)
++        self._action_groups.append(group)
++        return group
++
++    def add_mutually_exclusive_group(self, **kwargs):
++        group = _MutuallyExclusiveGroup(self, **kwargs)
++        self._mutually_exclusive_groups.append(group)
++        return group
++
++    def _add_action(self, action):
++        # resolve any conflicts
++        self._check_conflict(action)
++
++        # add to actions list
++        self._actions.append(action)
++        action.container = self
++
++        # index the action by any option strings it has
++        for option_string in action.option_strings:
++            self._option_string_actions[option_string] = action
++
++        # set the flag if any option strings look like negative numbers
++        for option_string in action.option_strings:
++            if self._negative_number_matcher.match(option_string):
++                if not self._has_negative_number_optionals:
++                    self._has_negative_number_optionals.append(True)
++
++        # return the created action
++        return action
++
++    def _remove_action(self, action):
++        self._actions.remove(action)
++
++    def _add_container_actions(self, container):
++        # collect groups by titles
++        title_group_map = {}
++        for group in self._action_groups:
++            if group.title in title_group_map:
++                msg = _('cannot merge actions - two groups are named %r')
++                raise ValueError(msg % (group.title))
++            title_group_map[group.title] = group
++
++        # map each action to its group
++        group_map = {}
++        for group in container._action_groups:
++
++            # if a group with the title exists, use that, otherwise
++            # create a new group matching the container's group
++            if group.title not in title_group_map:
++                title_group_map[group.title] = self.add_argument_group(
++                    title=group.title,
++                    description=group.description,
++                    conflict_handler=group.conflict_handler)
++
++            # map the actions to their new group
++            for action in group._group_actions:
++                group_map[action] = title_group_map[group.title]
++
++        # add container's mutually exclusive groups
++        # NOTE: if add_mutually_exclusive_group ever gains title= and
++        # description= then this code will need to be expanded as above
++        for group in container._mutually_exclusive_groups:
++            mutex_group = self.add_mutually_exclusive_group(
++                required=group.required)
++
++            # map the actions to their new mutex group
++            for action in group._group_actions:
++                group_map[action] = mutex_group
++
++        # add all actions to this container or their group
++        for action in container._actions:
++            group_map.get(action, self)._add_action(action)
++
++    def _get_positional_kwargs(self, dest, **kwargs):
++        # make sure required is not specified
++        if 'required' in kwargs:
++            msg = _("'required' is an invalid argument for positionals")
++            raise TypeError(msg)
++
++        # mark positional arguments as required if at least one is
++        # always required
++        if kwargs.get('nargs') not in [OPTIONAL, ZERO_OR_MORE]:
++            kwargs['required'] = True
++        if kwargs.get('nargs') == ZERO_OR_MORE and 'default' not in kwargs:
++            kwargs['required'] = True
++
++        # return the keyword arguments with no option strings
++        return dict(kwargs, dest=dest, option_strings=[])
++
++    def _get_optional_kwargs(self, *args, **kwargs):
++        # determine short and long option strings
++        option_strings = []
++        long_option_strings = []
++        for option_string in args:
++            # error on strings that don't start with an appropriate prefix
++            if not option_string[0] in self.prefix_chars:
++                msg = _('invalid option string %r: '
++                        'must start with a character %r')
++                tup = option_string, self.prefix_chars
++                raise ValueError(msg % tup)
++
++            # strings starting with two prefix characters are long options
++            option_strings.append(option_string)
++            if option_string[0] in self.prefix_chars:
++                if len(option_string) > 1:
++                    if option_string[1] in self.prefix_chars:
++                        long_option_strings.append(option_string)
++
++        # infer destination, '--foo-bar' -> 'foo_bar' and '-x' -> 'x'
++        dest = kwargs.pop('dest', None)
++        if dest is None:
++            if long_option_strings:
++                dest_option_string = long_option_strings[0]
++            else:
++                dest_option_string = option_strings[0]
++            dest = dest_option_string.lstrip(self.prefix_chars)
++            if not dest:
++                msg = _('dest= is required for options like %r')
++                raise ValueError(msg % option_string)
++            dest = dest.replace('-', '_')
++
++        # return the updated keyword arguments
++        return dict(kwargs, dest=dest, option_strings=option_strings)
++
++    def _pop_action_class(self, kwargs, default=None):
++        action = kwargs.pop('action', default)
++        return self._registry_get('action', action, action)
++
++    def _get_handler(self):
++        # determine function from conflict handler string
++        handler_func_name = '_handle_conflict_%s' % self.conflict_handler
++        try:
++            return getattr(self, handler_func_name)
++        except AttributeError:
++            msg = _('invalid conflict_resolution value: %r')
++            raise ValueError(msg % self.conflict_handler)
++
++    def _check_conflict(self, action):
++
++        # find all options that conflict with this option
++        confl_optionals = []
++        for option_string in action.option_strings:
++            if option_string in self._option_string_actions:
++                confl_optional = self._option_string_actions[option_string]
++                confl_optionals.append((option_string, confl_optional))
++
++        # resolve any conflicts
++        if confl_optionals:
++            conflict_handler = self._get_handler()
++            conflict_handler(action, confl_optionals)
++
++    def _handle_conflict_error(self, action, conflicting_actions):
++        message = _('conflicting option string(s): %s')
++        conflict_string = ', '.join([option_string
++                                     for option_string, action
++                                     in conflicting_actions])
++        raise ArgumentError(action, message % conflict_string)
++
++    def _handle_conflict_resolve(self, action, conflicting_actions):
++
++        # remove all conflicting options
++        for option_string, action in conflicting_actions:
++
++            # remove the conflicting option
++            action.option_strings.remove(option_string)
++            self._option_string_actions.pop(option_string, None)
++
++            # if the option now has no option string, remove it from the
++            # container holding it
++            if not action.option_strings:
++                action.container._remove_action(action)
++
++
++class _ArgumentGroup(_ActionsContainer):
++
++    def __init__(self, container, title=None, description=None, **kwargs):
++        # add any missing keyword arguments by checking the container
++        update = kwargs.setdefault
++        update('conflict_handler', container.conflict_handler)
++        update('prefix_chars', container.prefix_chars)
++        update('argument_default', container.argument_default)
++        super_init = super(_ArgumentGroup, self).__init__
++        super_init(description=description, **kwargs)
++
++        # group attributes
++        self.title = title
++        self._group_actions = []
++
++        # share most attributes with the container
++        self._registries = container._registries
++        self._actions = container._actions
++        self._option_string_actions = container._option_string_actions
++        self._defaults = container._defaults
++        self._has_negative_number_optionals = \
++            container._has_negative_number_optionals
++
++    def _add_action(self, action):
++        action = super(_ArgumentGroup, self)._add_action(action)
++        self._group_actions.append(action)
++        return action
++
++    def _remove_action(self, action):
++        super(_ArgumentGroup, self)._remove_action(action)
++        self._group_actions.remove(action)
++
++
++class _MutuallyExclusiveGroup(_ArgumentGroup):
++
++    def __init__(self, container, required=False):
++        super(_MutuallyExclusiveGroup, self).__init__(container)
++        self.required = required
++        self._container = container
++
++    def _add_action(self, action):
++        if action.required:
++            msg = _('mutually exclusive arguments must be optional')
++            raise ValueError(msg)
++        action = self._container._add_action(action)
++        self._group_actions.append(action)
++        return action
++
++    def _remove_action(self, action):
++        self._container._remove_action(action)
++        self._group_actions.remove(action)
++
++
++class ArgumentParser(_AttributeHolder, _ActionsContainer):
++    """Object for parsing command line strings into Python objects.
++
++    Keyword Arguments:
++        - prog -- The name of the program (default: sys.argv[0])
++        - usage -- A usage message (default: auto-generated from arguments)
++        - description -- A description of what the program does
++        - epilog -- Text following the argument descriptions
++        - parents -- Parsers whose arguments should be copied into this one
++        - formatter_class -- HelpFormatter class for printing help messages
++        - prefix_chars -- Characters that prefix optional arguments
++        - fromfile_prefix_chars -- Characters that prefix files containing
++            additional arguments
++        - argument_default -- The default value for all arguments
++        - conflict_handler -- String indicating how to handle conflicts
++        - add_help -- Add a -h/-help option
++    """
++
++    def __init__(self,
++                 prog=None,
++                 usage=None,
++                 description=None,
++                 epilog=None,
++                 version=None,
++                 parents=[],
++                 formatter_class=HelpFormatter,
++                 prefix_chars='-',
++                 fromfile_prefix_chars=None,
++                 argument_default=None,
++                 conflict_handler='error',
++                 add_help=True):
++
++        if version is not None:
++            import warnings
++            warnings.warn(
++                """The "version" argument to ArgumentParser is deprecated. """
++                """Please use """
++                """"add_argument(..., action='version', version="N", ...)" """
++                """instead""", DeprecationWarning)
++
++        superinit = super(ArgumentParser, self).__init__
++        superinit(description=description,
++                  prefix_chars=prefix_chars,
++                  argument_default=argument_default,
++                  conflict_handler=conflict_handler)
++
++        # default setting for prog
++        if prog is None:
++            prog = _os.path.basename(_sys.argv[0])
++
++        self.prog = prog
++        self.usage = usage
++        self.epilog = epilog
++        self.version = version
++        self.formatter_class = formatter_class
++        self.fromfile_prefix_chars = fromfile_prefix_chars
++        self.add_help = add_help
++
++        add_group = self.add_argument_group
++        self._positionals = add_group(_('positional arguments'))
++        self._optionals = add_group(_('optional arguments'))
++        self._subparsers = None
++
++        # register types
++        def identity(string):
++            return string
++        self.register('type', None, identity)
++
++        # add help and version arguments if necessary
++        # (using explicit default to override global argument_default)
++        if '-' in prefix_chars:
++            default_prefix = '-'
++        else:
++            default_prefix = prefix_chars[0]
++        if self.add_help:
++            self.add_argument(
++                default_prefix+'h', default_prefix*2+'help',
++                action='help', default=SUPPRESS,
++                help=_('show this help message and exit'))
++        if self.version:
++            self.add_argument(
++                default_prefix+'v', default_prefix*2+'version',
++                action='version', default=SUPPRESS,
++                version=self.version,
++                help=_("show program's version number and exit"))
++
++        # add parent arguments and defaults
++        for parent in parents:
++            self._add_container_actions(parent)
++            try:
++                defaults = parent._defaults
++            except AttributeError:
++                pass
++            else:
++                self._defaults.update(defaults)
++
++    # =======================
++    # Pretty __repr__ methods
++    # =======================
++    def _get_kwargs(self):
++        names = [
++            'prog',
++            'usage',
++            'description',
++            'version',
++            'formatter_class',
++            'conflict_handler',
++            'add_help',
++        ]
++        return [(name, getattr(self, name)) for name in names]
++
++    # ==================================
++    # Optional/Positional adding methods
++    # ==================================
++    def add_subparsers(self, **kwargs):
++        if self._subparsers is not None:
++            self.error(_('cannot have multiple subparser arguments'))
++
++        # add the parser class to the arguments if it's not present
++        kwargs.setdefault('parser_class', type(self))
++
++        if 'title' in kwargs or 'description' in kwargs:
++            title = _(kwargs.pop('title', 'subcommands'))
++            description = _(kwargs.pop('description', None))
++            self._subparsers = self.add_argument_group(title, description)
++        else:
++            self._subparsers = self._positionals
++
++        # prog defaults to the usage message of this parser, skipping
++        # optional arguments and with no "usage:" prefix
++        if kwargs.get('prog') is None:
++            formatter = self._get_formatter()
++            positionals = self._get_positional_actions()
++            groups = self._mutually_exclusive_groups
++            formatter.add_usage(self.usage, positionals, groups, '')
++            kwargs['prog'] = formatter.format_help().strip()
++
++        # create the parsers action and add it to the positionals list
++        parsers_class = self._pop_action_class(kwargs, 'parsers')
++        action = parsers_class(option_strings=[], **kwargs)
++        self._subparsers._add_action(action)
++
++        # return the created parsers action
++        return action
++
++    def _add_action(self, action):
++        if action.option_strings:
++            self._optionals._add_action(action)
++        else:
++            self._positionals._add_action(action)
++        return action
++
++    def _get_optional_actions(self):
++        return [action
++                for action in self._actions
++                if action.option_strings]
++
++    def _get_positional_actions(self):
++        return [action
++                for action in self._actions
++                if not action.option_strings]
++
++    # =====================================
++    # Command line argument parsing methods
++    # =====================================
++    def parse_args(self, args=None, namespace=None):
++        args, argv = self.parse_known_args(args, namespace)
++        if argv:
++            msg = _('unrecognized arguments: %s')
++            self.error(msg % ' '.join(argv))
++        return args
++
++    def parse_known_args(self, args=None, namespace=None):
++        # args default to the system args
++        if args is None:
++            args = _sys.argv[1:]
++
++        # default Namespace built from parser defaults
++        if namespace is None:
++            namespace = Namespace()
++
++        # add any action defaults that aren't present
++        for action in self._actions:
++            if action.dest is not SUPPRESS:
++                if not hasattr(namespace, action.dest):
++                    if action.default is not SUPPRESS:
++                        default = action.default
++                        if isinstance(action.default, basestring):
++                            default = self._get_value(action, default)
++                        setattr(namespace, action.dest, default)
++
++        # add any parser defaults that aren't present
++        for dest in self._defaults:
++            if not hasattr(namespace, dest):
++                setattr(namespace, dest, self._defaults[dest])
++
++        # parse the arguments and exit if there are any errors
++        try:
++            namespace, args = self._parse_known_args(args, namespace)
++            if hasattr(namespace, _UNRECOGNIZED_ARGS_ATTR):
++                args.extend(getattr(namespace, _UNRECOGNIZED_ARGS_ATTR))
++                delattr(namespace, _UNRECOGNIZED_ARGS_ATTR)
++            return namespace, args
++        except ArgumentError:
++            err = _sys.exc_info()[1]
++            self.error(str(err))
++
++    def _parse_known_args(self, arg_strings, namespace):
++        # replace arg strings that are file references
++        if self.fromfile_prefix_chars is not None:
++            arg_strings = self._read_args_from_files(arg_strings)
++
++        # map all mutually exclusive arguments to the other arguments
++        # they can't occur with
++        action_conflicts = {}
++        for mutex_group in self._mutually_exclusive_groups:
++            group_actions = mutex_group._group_actions
++            for i, mutex_action in enumerate(mutex_group._group_actions):
++                conflicts = action_conflicts.setdefault(mutex_action, [])
++                conflicts.extend(group_actions[:i])
++                conflicts.extend(group_actions[i + 1:])
++
++        # find all option indices, and determine the arg_string_pattern
++        # which has an 'O' if there is an option at an index,
++        # an 'A' if there is an argument, or a '-' if there is a '--'
++        option_string_indices = {}
++        arg_string_pattern_parts = []
++        arg_strings_iter = iter(arg_strings)
++        for i, arg_string in enumerate(arg_strings_iter):
++
++            # all args after -- are non-options
++            if arg_string == '--':
++                arg_string_pattern_parts.append('-')
++                for arg_string in arg_strings_iter:
++                    arg_string_pattern_parts.append('A')
++
++            # otherwise, add the arg to the arg strings
++            # and note the index if it was an option
++            else:
++                option_tuple = self._parse_optional(arg_string)
++                if option_tuple is None:
++                    pattern = 'A'
++                else:
++                    option_string_indices[i] = option_tuple
++                    pattern = 'O'
++                arg_string_pattern_parts.append(pattern)
++
++        # join the pieces together to form the pattern
++        arg_strings_pattern = ''.join(arg_string_pattern_parts)
++
++        # converts arg strings to the appropriate and then takes the action
++        seen_actions = set()
++        seen_non_default_actions = set()
++
++        def take_action(action, argument_strings, option_string=None):
++            seen_actions.add(action)
++            argument_values = self._get_values(action, argument_strings)
++
++            # error if this argument is not allowed with other previously
++            # seen arguments, assuming that actions that use the default
++            # value don't really count as "present"
++            if argument_values is not action.default:
++                seen_non_default_actions.add(action)
++                for conflict_action in action_conflicts.get(action, []):
++                    if conflict_action in seen_non_default_actions:
++                        msg = _('not allowed with argument %s')
++                        action_name = _get_action_name(conflict_action)
++                        raise ArgumentError(action, msg % action_name)
++
++            # take the action if we didn't receive a SUPPRESS value
++            # (e.g. from a default)
++            if argument_values is not SUPPRESS:
++                action(self, namespace, argument_values, option_string)
++
++        # function to convert arg_strings into an optional action
++        def consume_optional(start_index):
++
++            # get the optional identified at this index
++            option_tuple = option_string_indices[start_index]
++            action, option_string, explicit_arg = option_tuple
++
++            # identify additional optionals in the same arg string
++            # (e.g. -xyz is the same as -x -y -z if no args are required)
++            match_argument = self._match_argument
++            action_tuples = []
++            while True:
++
++                # if we found no optional action, skip it
++                if action is None:
++                    extras.append(arg_strings[start_index])
++                    return start_index + 1
++
++                # if there is an explicit argument, try to match the
++                # optional's string arguments to only this
++                if explicit_arg is not None:
++                    arg_count = match_argument(action, 'A')
++
++                    # if the action is a single-dash option and takes no
++                    # arguments, try to parse more single-dash options out
++                    # of the tail of the option string
++                    chars = self.prefix_chars
++                    if arg_count == 0 and option_string[1] not in chars:
++                        action_tuples.append((action, [], option_string))
++                        char = option_string[0]
++                        option_string = char + explicit_arg[0]
++                        new_explicit_arg = explicit_arg[1:] or None
++                        optionals_map = self._option_string_actions
++                        if option_string in optionals_map:
++                            action = optionals_map[option_string]
++                            explicit_arg = new_explicit_arg
++                        else:
++                            msg = _('ignored explicit argument %r')
++                            raise ArgumentError(action, msg % explicit_arg)
++
++                    # if the action expect exactly one argument, we've
++                    # successfully matched the option; exit the loop
++                    elif arg_count == 1:
++                        stop = start_index + 1
++                        args = [explicit_arg]
++                        action_tuples.append((action, args, option_string))
++                        break
++
++                    # error if a double-dash option did not use the
++                    # explicit argument
++                    else:
++                        msg = _('ignored explicit argument %r')
++                        raise ArgumentError(action, msg % explicit_arg)
++
++                # if there is no explicit argument, try to match the
++                # optional's string arguments with the following strings
++                # if successful, exit the loop
++                else:
++                    start = start_index + 1
++                    selected_patterns = arg_strings_pattern[start:]
++                    arg_count = match_argument(action, selected_patterns)
++                    stop = start + arg_count
++                    args = arg_strings[start:stop]
++                    action_tuples.append((action, args, option_string))
++                    break
++
++            # add the Optional to the list and return the index at which
++            # the Optional's string args stopped
++            assert action_tuples
++            for action, args, option_string in action_tuples:
++                take_action(action, args, option_string)
++            return stop
++
++        # the list of Positionals left to be parsed; this is modified
++        # by consume_positionals()
++        positionals = self._get_positional_actions()
++
++        # function to convert arg_strings into positional actions
++        def consume_positionals(start_index):
++            # match as many Positionals as possible
++            match_partial = self._match_arguments_partial
++            selected_pattern = arg_strings_pattern[start_index:]
++            arg_counts = match_partial(positionals, selected_pattern)
++
++            # slice off the appropriate arg strings for each Positional
++            # and add the Positional and its args to the list
++            for action, arg_count in zip(positionals, arg_counts):
++                args = arg_strings[start_index: start_index + arg_count]
++                start_index += arg_count
++                take_action(action, args)
++
++            # slice off the Positionals that we just parsed and return the
++            # index at which the Positionals' string args stopped
++            positionals[:] = positionals[len(arg_counts):]
++            return start_index
++
++        # consume Positionals and Optionals alternately, until we have
++        # passed the last option string
++        extras = []
++        start_index = 0
++        if option_string_indices:
++            max_option_string_index = max(option_string_indices)
++        else:
++            max_option_string_index = -1
++        while start_index <= max_option_string_index:
++
++            # consume any Positionals preceding the next option
++            next_option_string_index = min([
++                index
++                for index in option_string_indices
++                if index >= start_index])
++            if start_index != next_option_string_index:
++                positionals_end_index = consume_positionals(start_index)
++
++                # only try to parse the next optional if we didn't consume
++                # the option string during the positionals parsing
++                if positionals_end_index > start_index:
++                    start_index = positionals_end_index
++                    continue
++                else:
++                    start_index = positionals_end_index
++
++            # if we consumed all the positionals we could and we're not
++            # at the index of an option string, there were extra arguments
++            if start_index not in option_string_indices:
++                strings = arg_strings[start_index:next_option_string_index]
++                extras.extend(strings)
++                start_index = next_option_string_index
++
++            # consume the next optional and any arguments for it
++            start_index = consume_optional(start_index)
++
++        # consume any positionals following the last Optional
++        stop_index = consume_positionals(start_index)
++
++        # if we didn't consume all the argument strings, there were extras
++        extras.extend(arg_strings[stop_index:])
++
++        # if we didn't use all the Positional objects, there were too few
++        # arg strings supplied.
++        if positionals:
++            self.error(_('too few arguments'))
++
++        # make sure all required actions were present
++        for action in self._actions:
++            if action.required:
++                if action not in seen_actions:
++                    name = _get_action_name(action)
++                    self.error(_('argument %s is required') % name)
++
++        # make sure all required groups had one option present
++        for group in self._mutually_exclusive_groups:
++            if group.required:
++                for action in group._group_actions:
++                    if action in seen_non_default_actions:
++                        break
++
++                # if no actions were used, report the error
++                else:
++                    names = [_get_action_name(action)
++                             for action in group._group_actions
++                             if action.help is not SUPPRESS]
++                    msg = _('one of the arguments %s is required')
++                    self.error(msg % ' '.join(names))
++
++        # return the updated namespace and the extra arguments
++        return namespace, extras
++
++    def _read_args_from_files(self, arg_strings):
++        # expand arguments referencing files
++        new_arg_strings = []
++        for arg_string in arg_strings:
++
++            # for regular arguments, just add them back into the list
++            if arg_string[0] not in self.fromfile_prefix_chars:
++                new_arg_strings.append(arg_string)
++
++            # replace arguments referencing files with the file content
++            else:
++                try:
++                    args_file = open(arg_string[1:])
++                    try:
++                        arg_strings = []
++                        for arg_line in args_file.read().splitlines():
++                            for arg in self.convert_arg_line_to_args(arg_line):
++                                arg_strings.append(arg)
++                        arg_strings = self._read_args_from_files(arg_strings)
++                        new_arg_strings.extend(arg_strings)
++                    finally:
++                        args_file.close()
++                except IOError:
++                    err = _sys.exc_info()[1]
++                    self.error(str(err))
++
++        # return the modified argument list
++        return new_arg_strings
++
++    def convert_arg_line_to_args(self, arg_line):
++        return [arg_line]
++
++    def _match_argument(self, action, arg_strings_pattern):
++        # match the pattern for this action to the arg strings
++        nargs_pattern = self._get_nargs_pattern(action)
++        match = _re.match(nargs_pattern, arg_strings_pattern)
++
++        # raise an exception if we weren't able to find a match
++        if match is None:
++            nargs_errors = {
++                None: _('expected one argument'),
++                OPTIONAL: _('expected at most one argument'),
++                ONE_OR_MORE: _('expected at least one argument'),
++            }
++            default = _('expected %s argument(s)') % action.nargs
++            msg = nargs_errors.get(action.nargs, default)
++            raise ArgumentError(action, msg)
++
++        # return the number of arguments matched
++        return len(match.group(1))
++
++    def _match_arguments_partial(self, actions, arg_strings_pattern):
++        # progressively shorten the actions list by slicing off the
++        # final actions until we find a match
++        result = []
++        for i in range(len(actions), 0, -1):
++            actions_slice = actions[:i]
++            pattern = ''.join([self._get_nargs_pattern(action)
++                               for action in actions_slice])
++            match = _re.match(pattern, arg_strings_pattern)
++            if match is not None:
++                result.extend([len(string) for string in match.groups()])
++                break
++
++        # return the list of arg string counts
++        return result
++
++    def _parse_optional(self, arg_string):
++        # if it's an empty string, it was meant to be a positional
++        if not arg_string:
++            return None
++
++        # if it doesn't start with a prefix, it was meant to be positional
++        if not arg_string[0] in self.prefix_chars:
++            return None
++
++        # if the option string is present in the parser, return the action
++        if arg_string in self._option_string_actions:
++            action = self._option_string_actions[arg_string]
++            return action, arg_string, None
++
++        # if it's just a single character, it was meant to be positional
++        if len(arg_string) == 1:
++            return None
++
++        # if the option string before the "=" is present, return the action
++        if '=' in arg_string:
++            option_string, explicit_arg = arg_string.split('=', 1)
++            if option_string in self._option_string_actions:
++                action = self._option_string_actions[option_string]
++                return action, option_string, explicit_arg
++
++        # search through all possible prefixes of the option string
++        # and all actions in the parser for possible interpretations
++        option_tuples = self._get_option_tuples(arg_string)
++
++        # if multiple actions match, the option string was ambiguous
++        if len(option_tuples) > 1:
++            options = ', '.join([option_string
++                for action, option_string, explicit_arg in option_tuples])
++            tup = arg_string, options
++            self.error(_('ambiguous option: %s could match %s') % tup)
++
++        # if exactly one action matched, this segmentation is good,
++        # so return the parsed action
++        elif len(option_tuples) == 1:
++            option_tuple, = option_tuples
++            return option_tuple
++
++        # if it was not found as an option, but it looks like a negative
++        # number, it was meant to be positional
++        # unless there are negative-number-like options
++        if self._negative_number_matcher.match(arg_string):
++            if not self._has_negative_number_optionals:
++                return None
++
++        # if it contains a space, it was meant to be a positional
++        if ' ' in arg_string:
++            return None
++
++        # it was meant to be an optional but there is no such option
++        # in this parser (though it might be a valid option in a subparser)
++        return None, arg_string, None
++
++    def _get_option_tuples(self, option_string):
++        result = []
++
++        # option strings starting with two prefix characters are only
++        # split at the '='
++        chars = self.prefix_chars
++        if option_string[0] in chars and option_string[1] in chars:
++            if '=' in option_string:
++                option_prefix, explicit_arg = option_string.split('=', 1)
++            else:
++                option_prefix = option_string
++                explicit_arg = None
++            for option_string in self._option_string_actions:
++                if option_string.startswith(option_prefix):
++                    action = self._option_string_actions[option_string]
++                    tup = action, option_string, explicit_arg
++                    result.append(tup)
++
++        # single character options can be concatenated with their arguments
++        # but multiple character options always have to have their argument
++        # separate
++        elif option_string[0] in chars and option_string[1] not in chars:
++            option_prefix = option_string
++            explicit_arg = None
++            short_option_prefix = option_string[:2]
++            short_explicit_arg = option_string[2:]
++
++            for option_string in self._option_string_actions:
++                if option_string == short_option_prefix:
++                    action = self._option_string_actions[option_string]
++                    tup = action, option_string, short_explicit_arg
++                    result.append(tup)
++                elif option_string.startswith(option_prefix):
++                    action = self._option_string_actions[option_string]
++                    tup = action, option_string, explicit_arg
++                    result.append(tup)
++
++        # shouldn't ever get here
++        else:
++            self.error(_('unexpected option string: %s') % option_string)
++
++        # return the collected option tuples
++        return result
++
++    def _get_nargs_pattern(self, action):
++        # in all examples below, we have to allow for '--' args
++        # which are represented as '-' in the pattern
++        nargs = action.nargs
++
++        # the default (None) is assumed to be a single argument
++        if nargs is None:
++            nargs_pattern = '(-*A-*)'
++
++        # allow zero or one arguments
++        elif nargs == OPTIONAL:
++            nargs_pattern = '(-*A?-*)'
++
++        # allow zero or more arguments
++        elif nargs == ZERO_OR_MORE:
++            nargs_pattern = '(-*[A-]*)'
++
++        # allow one or more arguments
++        elif nargs == ONE_OR_MORE:
++            nargs_pattern = '(-*A[A-]*)'
++
++        # allow any number of options or arguments
++        elif nargs == REMAINDER:
++            nargs_pattern = '([-AO]*)'
++
++        # allow one argument followed by any number of options or arguments
++        elif nargs == PARSER:
++            nargs_pattern = '(-*A[-AO]*)'
++
++        # all others should be integers
++        else:
++            nargs_pattern = '(-*%s-*)' % '-*'.join('A' * nargs)
++
++        # if this is an optional action, -- is not allowed
++        if action.option_strings:
++            nargs_pattern = nargs_pattern.replace('-*', '')
++            nargs_pattern = nargs_pattern.replace('-', '')
++
++        # return the pattern
++        return nargs_pattern
++
++    # ========================
++    # Value conversion methods
++    # ========================
++    def _get_values(self, action, arg_strings):
++        # for everything but PARSER args, strip out '--'
++        if action.nargs not in [PARSER, REMAINDER]:
++            arg_strings = [s for s in arg_strings if s != '--']
++
++        # optional argument produces a default when not present
++        if not arg_strings and action.nargs == OPTIONAL:
++            if action.option_strings:
++                value = action.const
++            else:
++                value = action.default
++            if isinstance(value, basestring):
++                value = self._get_value(action, value)
++                self._check_value(action, value)
++
++        # when nargs='*' on a positional, if there were no command-line
++        # args, use the default if it is anything other than None
++        elif (not arg_strings and action.nargs == ZERO_OR_MORE and
++              not action.option_strings):
++            if action.default is not None:
++                value = action.default
++            else:
++                value = arg_strings
++            self._check_value(action, value)
++
++        # single argument or optional argument produces a single value
++        elif len(arg_strings) == 1 and action.nargs in [None, OPTIONAL]:
++            arg_string, = arg_strings
++            value = self._get_value(action, arg_string)
++            self._check_value(action, value)
++
++        # REMAINDER arguments convert all values, checking none
++        elif action.nargs == REMAINDER:
++            value = [self._get_value(action, v) for v in arg_strings]
++
++        # PARSER arguments convert all values, but check only the first
++        elif action.nargs == PARSER:
++            value = [self._get_value(action, v) for v in arg_strings]
++            self._check_value(action, value[0])
++
++        # all other types of nargs produce a list
++        else:
++            value = [self._get_value(action, v) for v in arg_strings]
++            for v in value:
++                self._check_value(action, v)
++
++        # return the converted value
++        return value
++
++    def _get_value(self, action, arg_string):
++        type_func = self._registry_get('type', action.type, action.type)
++        if not _callable(type_func):
++            msg = _('%r is not callable')
++            raise ArgumentError(action, msg % type_func)
++
++        # convert the value to the appropriate type
++        try:
++            result = type_func(arg_string)
++
++        # ArgumentTypeErrors indicate errors
++        except ArgumentTypeError:
++            name = getattr(action.type, '__name__', repr(action.type))
++            msg = str(_sys.exc_info()[1])
++            raise ArgumentError(action, msg)
++
++        # TypeErrors or ValueErrors also indicate errors
++        except (TypeError, ValueError):
++            name = getattr(action.type, '__name__', repr(action.type))
++            msg = _('invalid %s value: %r')
++            raise ArgumentError(action, msg % (name, arg_string))
++
++        # return the converted value
++        return result
++
++    def _check_value(self, action, value):
++        # converted value must be one of the choices (if specified)
++        if action.choices is not None and value not in action.choices:
++            tup = value, ', '.join(map(repr, action.choices))
++            msg = _('invalid choice: %r (choose from %s)') % tup
++            raise ArgumentError(action, msg)
++
++    # =======================
++    # Help-formatting methods
++    # =======================
++    def format_usage(self):
++        formatter = self._get_formatter()
++        formatter.add_usage(self.usage, self._actions,
++                            self._mutually_exclusive_groups)
++        return formatter.format_help()
++
++    def format_help(self):
++        formatter = self._get_formatter()
++
++        # usage
++        formatter.add_usage(self.usage, self._actions,
++                            self._mutually_exclusive_groups)
++
++        # description
++        formatter.add_text(self.description)
++
++        # positionals, optionals and user-defined groups
++        for action_group in self._action_groups:
++            formatter.start_section(action_group.title)
++            formatter.add_text(action_group.description)
++            formatter.add_arguments(action_group._group_actions)
++            formatter.end_section()
++
++        # epilog
++        formatter.add_text(self.epilog)
++
++        # determine help from format above
++        return formatter.format_help()
++
++    def format_version(self):
++        import warnings
++        warnings.warn(
++            'The format_version method is deprecated -- the "version" '
++            'argument to ArgumentParser is no longer supported.',
++            DeprecationWarning)
++        formatter = self._get_formatter()
++        formatter.add_text(self.version)
++        return formatter.format_help()
++
++    def _get_formatter(self):
++        return self.formatter_class(prog=self.prog)
++
++    # =====================
++    # Help-printing methods
++    # =====================
++    def print_usage(self, file=None):
++        if file is None:
++            file = _sys.stdout
++        self._print_message(self.format_usage(), file)
++
++    def print_help(self, file=None):
++        if file is None:
++            file = _sys.stdout
++        self._print_message(self.format_help(), file)
++
++    def print_version(self, file=None):
++        import warnings
++        warnings.warn(
++            'The print_version method is deprecated -- the "version" '
++            'argument to ArgumentParser is no longer supported.',
++            DeprecationWarning)
++        self._print_message(self.format_version(), file)
++
++    def _print_message(self, message, file=None):
++        if message:
++            if file is None:
++                file = _sys.stderr
++            file.write(message)
++
++    # ===============
++    # Exiting methods
++    # ===============
++    def exit(self, status=0, message=None):
++        if message:
++            self._print_message(message, _sys.stderr)
++        _sys.exit(status)
++
++    def error(self, message):
++        """error(message: string)
++
++        Prints a usage message incorporating the message to stderr and
++        exits.
++
++        If you override this in a subclass, it should not return -- it
++        should either exit or raise an exception.
++        """
++        self.print_usage(_sys.stderr)
++        self.exit(2, _('%s: error: %s\n') % (self.prog, message))
+diff -up mozilla-esr24/rebase/ordereddict.py.python mozilla-esr24/rebase/ordereddict.py
+--- mozilla-esr24/rebase/ordereddict.py.python	2013-10-22 16:49:25.033378278 +0200
++++ mozilla-esr24/rebase/ordereddict.py	2013-10-22 14:29:24.000000000 +0200
+@@ -0,0 +1,127 @@
++# Copyright (c) 2009 Raymond Hettinger
++#
++# Permission is hereby granted, free of charge, to any person
++# obtaining a copy of this software and associated documentation files
++# (the "Software"), to deal in the Software without restriction,
++# including without limitation the rights to use, copy, modify, merge,
++# publish, distribute, sublicense, and/or sell copies of the Software,
++# and to permit persons to whom the Software is furnished to do so,
++# subject to the following conditions:
++#
++#     The above copyright notice and this permission notice shall be
++#     included in all copies or substantial portions of the Software.
++#
++#     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
++#     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
++#     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
++#     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
++#     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
++#     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
++#     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
++#     OTHER DEALINGS IN THE SOFTWARE.
++
++from UserDict import DictMixin
++
++class OrderedDict(dict, DictMixin):
++
++    def __init__(self, *args, **kwds):
++        if len(args) > 1:
++            raise TypeError('expected at most 1 arguments, got %d' % len(args))
++        try:
++            self.__end
++        except AttributeError:
++            self.clear()
++        self.update(*args, **kwds)
++
++    def clear(self):
++        self.__end = end = []
++        end += [None, end, end]         # sentinel node for doubly linked list
++        self.__map = {}                 # key --> [key, prev, next]
++        dict.clear(self)
++
++    def __setitem__(self, key, value):
++        if key not in self:
++            end = self.__end
++            curr = end[1]
++            curr[2] = end[1] = self.__map[key] = [key, curr, end]
++        dict.__setitem__(self, key, value)
++
++    def __delitem__(self, key):
++        dict.__delitem__(self, key)
++        key, prev, next = self.__map.pop(key)
++        prev[2] = next
++        next[1] = prev
++
++    def __iter__(self):
++        end = self.__end
++        curr = end[2]
++        while curr is not end:
++            yield curr[0]
++            curr = curr[2]
++
++    def __reversed__(self):
++        end = self.__end
++        curr = end[1]
++        while curr is not end:
++            yield curr[0]
++            curr = curr[1]
++
++    def popitem(self, last=True):
++        if not self:
++            raise KeyError('dictionary is empty')
++        if last:
++            key = reversed(self).next()
++        else:
++            key = iter(self).next()
++        value = self.pop(key)
++        return key, value
++
++    def __reduce__(self):
++        items = [[k, self[k]] for k in self]
++        tmp = self.__map, self.__end
++        del self.__map, self.__end
++        inst_dict = vars(self).copy()
++        self.__map, self.__end = tmp
++        if inst_dict:
++            return (self.__class__, (items,), inst_dict)
++        return self.__class__, (items,)
++
++    def keys(self):
++        return list(self)
++
++    setdefault = DictMixin.setdefault
++    update = DictMixin.update
++    pop = DictMixin.pop
++    values = DictMixin.values
++    items = DictMixin.items
++    iterkeys = DictMixin.iterkeys
++    itervalues = DictMixin.itervalues
++    iteritems = DictMixin.iteritems
++
++    def __repr__(self):
++        if not self:
++            return '%s()' % (self.__class__.__name__,)
++        return '%s(%r)' % (self.__class__.__name__, self.items())
++
++    def copy(self):
++        return self.__class__(self)
++
++    @classmethod
++    def fromkeys(cls, iterable, value=None):
++        d = cls()
++        for key in iterable:
++            d[key] = value
++        return d
++
++    def __eq__(self, other):
++        if isinstance(other, OrderedDict):
++            if len(self) != len(other):
++                return False
++            for p, q in  zip(self.items(), other.items()):
++                if p != q:
++                    return False
++            return True
++        return dict.__eq__(self, other)
++
++    def __ne__(self, other):
++        return not self == other
+diff -up mozilla-esr24/toolkit/components/telemetry/histogram_tools.py.python mozilla-esr24/toolkit/components/telemetry/histogram_tools.py
+--- mozilla-esr24/toolkit/components/telemetry/histogram_tools.py.python	2013-09-11 05:22:53.000000000 +0200
++++ mozilla-esr24/toolkit/components/telemetry/histogram_tools.py	2013-10-22 14:29:24.564993891 +0200
+@@ -5,13 +5,8 @@
+ import math
+ 
+ # For compatibility with Python 2.6
+-try:
+-    from collections import OrderedDict
+-except ImportError:
+-    from simplejson import OrderedDict
+-    import simplejson as json
+-else:
+-    import json
++from simplejson import OrderedDict
++import simplejson as json
+ 
+ def table_dispatch(kind, table, body):
+     """Call body with table[kind] if it exists.  Raise an error otherwise."""
+diff -up mozilla-esr24/toolkit/mozapps/installer/find-dupes.py.python mozilla-esr24/toolkit/mozapps/installer/find-dupes.py
+--- mozilla-esr24/toolkit/mozapps/installer/find-dupes.py.python	2013-09-11 05:22:55.000000000 +0200
++++ mozilla-esr24/toolkit/mozapps/installer/find-dupes.py	2013-10-22 14:29:24.564993891 +0200
+@@ -5,7 +5,7 @@
+ import sys
+ import hashlib
+ from mozpack.packager.unpack import UnpackFinder
+-from collections import OrderedDict
++from ordereddict import OrderedDict
+ 
+ '''
+ Find files duplicated in a given packaged directory, independently of its
diff --git a/thunderbird-lightning.spec b/thunderbird-lightning.spec
index 792d31e..807fdb1 100644
--- a/thunderbird-lightning.spec
+++ b/thunderbird-lightning.spec
@@ -51,6 +51,8 @@ Patch0:         thunderbird-version.patch
 Patch1:         mozilla-build-arm.patch
 # Fix build on secondary arches (patches copied from xulrunner)
 Patch2:         xulrunner-10.0-secondary-ipc.patch
+
+Patch097:       mozilla-python.patch
 Patch099:       mozilla-build.patch
 Patch100:       xulrunner-2.0-chromium-types.patch
 Patch103:       xulrunner-gc-sections-ppc.patch
@@ -127,6 +129,8 @@ sed -e 's/__RPM_VERSION_INTERNAL__/%{version_internal}/' %{P:%%PATCH0} \
 cd mozilla
 %patch1 -p2 -b .arm-fix
 %patch2 -p3 -b .secondary-ipc
+%patch097 -p1 -b .python
+%patch099 -p1 -b .build
 %patch099 -p1 -b .build
 %patch100 -p2 -b .chromium-types
 


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