[PATCH] Logs: reset logging configuration on init

[Ondrej Lichtner]

From: Ondrej Lichtner <olichtne(a)redhat.com&gt;

This patch makes sure that the python logging module is cleared of any
previously set log handlers. Without this we could have our logs appear
twice in a row as was experienced when deprecatin messages were added to
the current release of pyroute2.

Signed-off-by: Ondrej Lichtner <olichtne(a)redhat.com&gt;
---
 lnst/Common/Logs.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lnst/Common/Logs.py b/lnst/Common/Logs.py
index 89118c1..233f427 100644
--- a/lnst/Common/Logs.py
+++ b/lnst/Common/Logs.py
@@ -102,6 +102,16 @@ class LoggingCtl:
     transmit_handler = None
 
     def __init__(self, debug=False, log_dir=None, log_subdir="",
colours=True):
+        #clear any previously set handlers
+        logger = logging.getLogger('')
+        for i in list(logger.handlers):
+            logger.removeHandler(i)
+        for key, logger in logging.Logger.manager.loggerDict.iteritems():
+            if type(logger) != type(logging.Logger):
+                continue
+            for i in list(logger.handlers):
+                logger.removeHandler(i)
+
         self._origin_name = None
 
         if log_dir != None:
-- 
1.9.3