Bug 525608 – dev-python/cython fails to build for python3 with bash-4.3

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description SpanKY 2014-10-17 01:31:14 UTC]

i'm not sure how this was ever marked for python 3 support.  the code base is full of <=python-2.5 exception style:
Cython/TestUtils.py:        except exc_type, e:
Cython/Build/Dependencies.py:    except (EnvironmentError, PyrexError), e:
Cython/Plex/Lexicons.py:    except Errors.PlexError, e:
Cython/Compiler/ExprNodes.py:        except Exception, e:
Cython/Compiler/Main.py:        except UnicodeDecodeError, e:
<lots more snipped>

and indeed, building it w/python-3.3 fails:
[ebuild     U  ] dev-python/cython-0.21 [0.20.1] USE="-doc {-test}" PYTHON_TARGETS="python2_7 python3_3 -pypy% (-python3_2) -python3_4% (-pypy2_0%) (-python2_6%)" 0 KiB
...
running build_ext
Traceback (most recent call last):
  File "setup.py", line 337, in <module>
    **setup_args
  File "/usr/lib64/python3.3/distutils/core.py", line 148, in setup
    dist.run_commands()
  File "/usr/lib64/python3.3/distutils/dist.py", line 930, in run_commands
    self.run_command(cmd)
  File "/usr/lib64/python3.3/distutils/dist.py", line 949, in run_command
    cmd_obj.run()
  File "/usr/lib64/python3.3/distutils/command/build.py", line 126, in run
    self.run_command(cmd_name)
  File "/usr/lib64/python3.3/distutils/cmd.py", line 313, in run_command
    self.distribution.run_command(command)
  File "/usr/lib64/python3.3/distutils/dist.py", line 949, in run_command
    cmd_obj.run()
  File "/var/tmp/portage/dev-python/cython-0.21/work/Cython-0.21/Cython/Distutils/build_ext.py", line 163, in run
    _build_ext.build_ext.run(self)
  File "/usr/lib64/python3.3/distutils/command/build_ext.py", line 353, in run
    self.build_extensions()
  File "setup.py", line 169, in build_extensions
    build_ext_orig.build_extensions(self)
  File "/var/tmp/portage/dev-python/cython-0.21/work/Cython-0.21/Cython/Distutils/build_ext.py", line 170, in build_extensions
    ext.sources = self.cython_sources(ext.sources, ext)
  File "/var/tmp/portage/dev-python/cython-0.21/work/Cython-0.21/Cython/Distutils/build_ext.py", line 181, in cython_sources
    from Cython.Compiler.Main \
  File "/var/tmp/portage/dev-python/cython-0.21/work/Cython-0.21/Cython/Compiler/Main.py", line 309
    except UnicodeDecodeError, e:
                             ^
SyntaxError: invalid syntax

[Comment 1 Mike Gilbert 2014-10-17 01:53:13 UTC]

setup.py runs 2to3 on the sources.

I'm sure this worked at some point, but I can confirm that it is broken at the moment.

[Comment 2 Mike Gilbert 2014-10-17 02:13:54 UTC]

This is actually caused by a change in behavior in bash-4.3.

http://lists.gnu.org/archive/html/bug-bash/2014-05/msg00003.html

[Comment 3 Mike Gilbert 2014-10-17 02:31:51 UTC]

+  17 Oct 2014; Mike Gilbert <[e-mail]> -cython-0.16.ebuild,
+  -cython-0.17.1.ebuild, -cython-0.17.2.ebuild, -cython-0.17.4.ebuild,
+  -cython-0.18-r1.ebuild, -cython-0.18.ebuild, -cython-0.19.2.ebuild,
+  -cython-0.20.1.ebuild, -cython-0.20.2.ebuild, -cython-0.20.ebuild,
+  -files/0.15.1-test.patch, cython-0.19.1-r1.ebuild, cython-0.19.1.ebuild,
+  cython-0.21.ebuild:
+  Work around bug in 'local' built-in for bash-4.3, bug 525608. Remove old
+  ebuilds.