Freecad and Python 3.9 help needed

[Richard Shaw]

I'm trying to rebuild FreeCAD but I've run into the following and I don't
know how to fix it.

---
In file included from
/builddir/build/BUILD/FreeCAD-0.18.4/src/App/ExtensionPyImp.cpp:34:
/builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/ExtensionPy.cpp:76:1:
warning: missing initializer for member '_typeobject::tp_vectorcall'
[-Wmissing-field-initializers]
   76 | };
      | ^
In file included from
/builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/PropertyContainerPy.h:7,
                 from
/builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/DocumentPy.h:7,
                 from
/builddir/build/BUILD/FreeCAD-0.18.4/src/App/Expression.cpp:32:
/builddir/build/BUILD/FreeCAD-0.18.4/build/src/Base/PersistencePy.h:67:9:
error: 'Int' in namespace 'Py' does not name a type
   67 |     Py::Int getMemSize(void) const;
      |         ^~~
In file included from
/builddir/build/BUILD/FreeCAD-0.18.4/src/App/Expression.cpp:32:
/builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/DocumentPy.h:179:9:
error: 'Int' in namespace 'Py' does not name a type
  179 |     Py::Int getUndoMode(void) const;
      |         ^~~
/builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/DocumentPy.h:183:26:
error: 'Py::Int' has not been declared
  183 |     void setUndoMode(Py::Int arg);
      |                          ^~~
/builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/DocumentPy.h:187:9:
error: 'Int' in namespace 'Py' does not name a type
  187 |     Py::Int getUndoRedoMemSize(void) const;
      |         ^~~
/builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/DocumentPy.h:194:9:
error: 'Int' in namespace 'Py' does not name a type
  194 |     Py::Int getUndoCount(void) const;
      |         ^~~
/builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/DocumentPy.h:201:9:
error: 'Int' in namespace 'Py' does not name a type
  201 |     Py::Int getRedoCount(void) const;
      |         ^~~
In file included from
/builddir/build/BUILD/FreeCAD-0.18.4/src/App/PropertyContainerPyImp.cpp:40:
/builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/PropertyContainerPy.cpp:76:1:
warning: missing initializer for member '_typeobject::tp_vectorcall'
[-Wmissing-field-initializers]
   76 | };
      | ^
In file included from
/builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/PropertyContainerPy.h:7,
                 from
/builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/ExtensionContainerPy.h:7,
                 from
/builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/DocumentObjectPy.h:7,
                 from
/builddir/build/BUILD/FreeCAD-0.18.4/src/App/FeaturePython.cpp:35:
/builddir/build/BUILD/FreeCAD-0.18.4/build/src/Base/PersistencePy.h:67:9:
error: 'Int' in namespace 'Py' does not name a type
   67 |     Py::Int getMemSize(void) const;
      |         ^~~
---

Full log here:
https://kojipkgs.fedoraproject.org//work/tasks/7099/45227099/build.log

Thanks,
Richard

[Petr Viktorin]

On 2020-06-01 19:20, Richard Shaw wrote:
> I'm trying to rebuild FreeCAD but I've run into the following and I 
> don't know how to fix it.

The "Py::Int" is not Python API; it probably comes from C++. Do you know 
where it's defined? I haven't been able to find the definition, and 
searching for "Py::Int" it on the internet gives me general results for 
"py" and "int".
> In file included from 
> /builddir/build/BUILD/FreeCAD-0.18.4/src/App/ExtensionPyImp.cpp:34:
> /builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/ExtensionPy.cpp:76:1: 
> warning: missing initializer for member '_typeobject::tp_vectorcall' 
> [-Wmissing-field-initializers]
>     76 | };
>        | ^
> In file included from 
> /builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/PropertyContainerPy.h:7,
>                   from 
> /builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/DocumentPy.h:7,
>                   from 
> /builddir/build/BUILD/FreeCAD-0.18.4/src/App/Expression.cpp:32:
> /builddir/build/BUILD/FreeCAD-0.18.4/build/src/Base/PersistencePy.h:67:9: error: 
> 'Int' in namespace 'Py' does not name a type
>     67 |     Py::Int getMemSize(void) const;
>        |         ^~~
> In file included from 
> /builddir/build/BUILD/FreeCAD-0.18.4/src/App/Expression.cpp:32:
> /builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/DocumentPy.h:179:9: 
> error: 'Int' in namespace 'Py' does not name a type
>    179 |     Py::Int getUndoMode(void) const;
>        |         ^~~
> /builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/DocumentPy.h:183:26: 
> error: 'Py::Int' has not been declared
>    183 |     void setUndoMode(Py::Int arg);
>        |                          ^~~
> /builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/DocumentPy.h:187:9: 
> error: 'Int' in namespace 'Py' does not name a type
>    187 |     Py::Int getUndoRedoMemSize(void) const;
>        |         ^~~
> /builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/DocumentPy.h:194:9: 
> error: 'Int' in namespace 'Py' does not name a type
>    194 |     Py::Int getUndoCount(void) const;
>        |         ^~~
> /builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/DocumentPy.h:201:9: 
> error: 'Int' in namespace 'Py' does not name a type
>    201 |     Py::Int getRedoCount(void) const;
>        |         ^~~
> In file included from 
> /builddir/build/BUILD/FreeCAD-0.18.4/src/App/PropertyContainerPyImp.cpp:40:
> /builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/PropertyContainerPy.cpp:76:1: 
> warning: missing initializer for member '_typeobject::tp_vectorcall' 
> [-Wmissing-field-initializers]
>     76 | };
>        | ^
> In file included from 
> /builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/PropertyContainerPy.h:7,
>                   from 
> /builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/ExtensionContainerPy.h:7,
>                   from 
> /builddir/build/BUILD/FreeCAD-0.18.4/build/src/App/DocumentObjectPy.h:7,
>                   from 
> /builddir/build/BUILD/FreeCAD-0.18.4/src/App/FeaturePython.cpp:35:
> /builddir/build/BUILD/FreeCAD-0.18.4/build/src/Base/PersistencePy.h:67:9: error: 
> 'Int' in namespace 'Py' does not name a type
>     67 |     Py::Int getMemSize(void) const;
>        |         ^~~
>
> Full log here:
> https://kojipkgs.fedoraproject.org//work/tasks/7099/45227099/build.log
>
> Thanks,
> Richard
>
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[Garry T. Williams]

On Tuesday, June 2, 2020 9:33:20 AM EDT Petr Viktorin wrote:
> On 2020-06-01 19:20, Richard Shaw wrote:
> > I'm trying to rebuild FreeCAD but I've run into the following and I 
> > don't know how to fix it.
>
> The "Py::Int" is not Python API; it probably comes from C++. Do you know 
> where it's defined? I haven't been able to find the definition, and 
> searching for "Py::Int" it on the internet gives me general results for 
> "py" and "int".

Search using quotation marks:

https://docs.scipy.org/doc/scipy-0.16.1/reference/tutorial/weave.html

[Petr Viktorin]

On 2020-06-02 16:38, Garry T. Williams wrote:
> On Tuesday, June 2, 2020 9:33:20 AM EDT Petr Viktorin wrote:
> > On 2020-06-01 19:20, Richard Shaw wrote:
> > > I'm trying to rebuild FreeCAD but I've run into the following and I
> > > don't know how to fix it.
> >
> > The "Py::Int" is not Python API; it probably comes from C++. Do you know
> > where it's defined? I haven't been able to find the definition, and
> > searching for "Py::Int" it on the internet gives me general results for
> > "py" and "int".
>
> Search using quotation marks:
>  https://docs.scipy.org/doc/scipy-0.16.1/reference/tutorial/weave.html

Ah, thanks!
It seems that weave was deprecated in 2015 and removed from scipy in 
2017. It was never ported to Python 3. The Freecad wiki says "You should 
compile against Python 3 and Qt5," so I assume weave should not be used.

How is the weave code getting in? I see the file "DocumentPy.h" doesn't 
appear directly in upstream sources. Do you know how it is generated?

[Scott Talbert]

On Tue, 2 Jun 2020, Petr Viktorin wrote:
> > > > I'm trying to rebuild FreeCAD but I've run into the following and I
> > > > don't know how to fix it.
> > >
> > > The "Py::Int" is not Python API; it probably comes from C++. Do you know
> > > where it's defined? I haven't been able to find the definition, and
> > > searching for "Py::Int" it on the internet gives me general results for
> > > "py" and "int".
> >
> > Search using quotation marks:
> >  https://docs.scipy.org/doc/scipy-0.16.1/reference/tutorial/weave.html
>
> Ah, thanks!
> It seems that weave was deprecated in 2015 and removed from scipy in 2017. 
> It was never ported to Python 3. The Freecad wiki says "You should compile 
> against Python 3 and Qt5," so I assume weave should not be used.
>
> How is the weave code getting in? I see the file "DocumentPy.h" doesn't 
> appear directly in upstream sources. Do you know how it is generated?

Actually, the Py::Int is coming from PyCXX.  The bundled copy of PyCXX 
defines PYCXX_PYTHON_2TO3 which in turn causes some Python 2 compatibility 
things to be defined, like Py::Int.  So this broke when moving to using 
the unbundled copy of PyCXX.

I submitted a PR with a fix:
https://src.fedoraproject.org/rpms/freecad/pull-request/4

Scott

[Scott Talbert]

On Wed, 3 Jun 2020, Scott Talbert wrote:
> > > > > I'm trying to rebuild FreeCAD but I've run into the following and I
> > > > > don't know how to fix it.
> > > >
> > > > The "Py::Int" is not Python API; it probably comes from C++. Do you know
> > > > where it's defined? I haven't been able to find the definition, and
> > > > searching for "Py::Int" it on the internet gives me general results for
> > > > "py" and "int".
> > >
> > > Search using quotation marks:
> > >  https://docs.scipy.org/doc/scipy-0.16.1/reference/tutorial/weave.html
> >
> > Ah, thanks!
> > It seems that weave was deprecated in 2015 and removed from scipy in 2017. 
> > It was never ported to Python 3. The Freecad wiki says "You should compile 
> > against Python 3 and Qt5," so I assume weave should not be used.
> >
> > How is the weave code getting in? I see the file "DocumentPy.h" doesn't 
> > appear directly in upstream sources. Do you know how it is generated?
>
> Actually, the Py::Int is coming from PyCXX.  The bundled copy of PyCXX 
> defines PYCXX_PYTHON_2TO3 which in turn causes some Python 2 compatibility 
> things to be defined, like Py::Int.  So this broke when moving to using the 
> unbundled copy of PyCXX.
>
> I submitted a PR with a fix:
> https://src.fedoraproject.org/rpms/freecad/pull-request/4

And of course the build fails for a different reason (I checked in mock 
but not koji), sigh.  So it's probably something that recently landed in 
Rawhide, I'm guessing boost related now?

[ 55%] Building CXX object 
src/Mod/PartDesign/App/CMakeFiles/PartDesign.dir/FeaturePolarPattern.cpp.o
cd /builddir/build/BUILD/FreeCAD-0.18.4/build/src/Mod/PartDesign/App && 
/usr/bin/c++  -DHAVE_CONFIG_H -DHAVE_LIMITS_H -DPYCXX_6_2_COMPATIBILITY 
-DPYCXX_PYTHON_2TO3 -DPartDesign_EXPORTS -DQT_CORE_LIB -DQT_NO_DEBUG 
-DQT_XML_LIB -D_OCC64 -I/builddir/build/BUILD/FreeCAD-0.18.4/build 
-I/builddir/build/BUILD/FreeCAD-0.18.4/build/src 
-I/builddir/build/BUILD/FreeCAD-0.18.4/src 
-I/builddir/build/BUILD/FreeCAD-0.18.4/build/src/Mod/PartDesign/App 
-I/usr/include/opencascade -I/usr/include/python3.9 -isystem 
/usr/include/qt5 -isystem /usr/include/qt5/QtCore -isystem 
/usr/lib64/qt5/mkspecs/linux-g++ -isystem /usr/include/qt5/QtXml  -Wall 
-Wextra -Wno-write-strings -O2 -g -pipe -Wall -Werror=format-security 
-Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions 
-fstack-protector-strong -grecord-gcc-switches 
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 
-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic 
-fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection 
-std=c++11 -D_OCC64 -fPIC   -fPIC -o 
CMakeFiles/PartDesign.dir/FeaturePolarPattern.cpp.o -c 
/builddir/build/BUILD/FreeCAD-0.18.4/src/Mod/PartDesign/App/FeaturePolarPattern.cpp
/builddir/build/BUILD/FreeCAD-0.18.4/src/Gui/DAGView/DAGView.cpp: In 
constructor 'Gui::DAG::View::View(QWidget*)':
/builddir/build/BUILD/FreeCAD-0.18.4/src/Gui/DAGView/DAGView.cpp:55:100: 
error: '_1' was not declared in this scope
    55 | 
Application::Instance->signalActiveDocument.connect(boost::bind(&View::slotActiveDocument, 
this, _1));
       | 
^~
/builddir/build/BUILD/FreeCAD-0.18.4/src/Gui/DAGView/DAGView.cpp:55:100: 
note: suggested alternatives:
In file included from 
/usr/include/boost/mpl/aux_/include_preprocessed.hpp:37,
                  from /usr/include/boost/mpl/placeholders.hpp:43,
                  from 
/usr/include/boost/iterator/iterator_categories.hpp:16,
                  from /usr/include/boost/iterator/iterator_facade.hpp:13,
                  from /usr/include/boost/filesystem/path.hpp:29,
                  from 
/builddir/build/BUILD/FreeCAD-0.18.4/src/App/PropertyStandard.h:34,
                  from 
/builddir/build/BUILD/FreeCAD-0.18.4/src/App/Document.h:32,
                  from 
/builddir/build/BUILD/FreeCAD-0.18.4/src/Gui/DAGView/DAGView.cpp:33:
/usr/include/boost/mpl/aux_/preprocessed/gcc/placeholders.hpp:29:16: note: 
'mpl_::_1'

Scott

[José Abílio Matos]

On Wednesday, 3 June 2020 19.05.03 WEST Scott Talbert wrote:
> And of course the build fails for a different reason (I checked in

mock
> but not koji), sigh.  So it's probably something that recently landed in
> Rawhide, I'm guessing boost related now?

Yes, see:
https://lists.fedoraproject.org/archives/list/
[e-mail]/message/
SSKNR5UC5QW7LMBQWTEMSBD6RB25PHLO/