[gtk-osx-users] Python3

[Volker Braun <vbraun name gmail com>]

There are various Python3 packages, but I can't see how to build gtk3
+ python3. Is this  possible at all? It starts to fail when building
pycairo-python3:


$ ./.local/bin/jhbuild build pycairo-python3
*** Checking out pixman *** [1/3]
*** Skipping pixman (package and dependencies not updated) *** [1/3]
*** Checking out cairo *** [2/3]
*** Skipping cairo (package and dependencies not updated) *** [2/3]
*** Checking out pycairo-python3 *** [3/3]
*** Configuring pycairo-python3 *** [3/3]
./waf configure --prefix /Users/vbraun/gtk/inst
  ./options()
Setting top to                           :
/Users/vbraun/gtk/source/pycairo-1.10.0
Setting out to                           :
/Users/vbraun/gtk/source/pycairo-1.10.0/build_directory
  ./configure()
Checking for 'gcc' (c compiler)          : ok
Checking for program python              : python
python executable 'python' different from sys.executable
'/Users/vbraun/gtk/inst/bin/python'
Checking for python version              : (2, 7, 3, 'final', 0)
The python version is too old, expecting (3, 1, 0)
(complete log in
/Users/vbraun/gtk/source/pycairo-1.10.0/build_directory/config.log)
*** Error during phase configure of pycairo-python3: ########## Error
running ./waf configure --prefix /Users/vbraun/gtk/inst *** [3/3]

  [1] Rerun phase configure
  [2] Ignore error and continue to build
  [3] Give up on module
  [4] Start shell
  [5] Reload configuration
  [6] Go to phase "wipe directory and start over"
choice: 4
exit shell to continue with build


Since jhbuild is python2 only, I can't just run everything with
python3. And it seems that the .jhbuildrc sets up the Python
environment depending on what jhbuild is running under. If I switch in
the shell to python3 then pycairo-python3 works, but  thats not
exactly a desirable approach for all packages:


$ echo $PYTHON
/Users/vbraun/gtk/inst/bin/python
$ echo $PYTHONPATH
/Users/vbraun/gtk/inst/lib/python2.7:/Users/vbraun/gtk/inst/lib/python2.7/site-packages/gtk-2.0:/Users/vbraun/gtk/inst/lib/python2.7/site-packages
$ export PYTHON=/Users/vbraun/gtk/inst/bin/python3
$ export 
PYTHONPATH=/Users/vbraun/gtk/inst/lib/python3.3:/Users/vbraun/gtk/inst/lib/python3.3/site-packages/gtk-2.0:/Users/vbraun/gtk/inst/lib/python3.3/site-packages
$ python3 ./waf configure --prefix /Users/vbraun/gtk/inst
  ./options()
Setting top to                           :
/Users/vbraun/gtk/source/pycairo-1.10.0
Setting out to                           :
/Users/vbraun/gtk/source/pycairo-1.10.0/build_directory
  ./configure()
Checking for 'gcc' (c compiler)          : ok
Checking for program python              : /Users/vbraun/gtk/inst/bin/python3
Checking for python version              : (3, 3, 2, 'final', 0)
Checking for library python3.3 in LIBPATH_PYEMBED : not found
Checking for library python3.3 in LIBDIR          : not found
Checking for library python3.3 in python_LIBPL    : not found
Checking for library python3.3 in $prefix/libs    : not found
Checking for library python3.3m in LIBPATH_PYEMBED : yes
Checking for program python3.3-config              :
/Users/vbraun/gtk/inst/bin/python3.3-config
Checking for header Python.h                       : yes
Checking for program pkg-config                    :
/Users/vbraun/gtk/inst/bin/pkg-config
Checking for 'cairo' >= 1.10.0                     : yes
Configuration:
PREFIX                                   : /Users/vbraun/gtk/inst
LIBDIR                                   : /Users/vbraun/gtk/inst/lib
'configure' finished successfully (0.477s)