Tests cannot run with setuptools 18.4 #5315
Description
This is a setuptools regression, 18.3.2 works fine.
See https://bitbucket.org/pypa/setuptools/commits/cf565b66b855dd4df189b679206f9fb113681737.
This will probably be fixed there, I just wanted to make you aware in case it is not.
Using matplotlib from master:
$ python setup.py test --nocapture --nose-verbose --processes=5 --process-timeout=300
...
running test
Traceback (most recent call last):
File "setup.py", line 381, in <module>
**extra_args
File "/usr/lib/python3.5/distutils/core.py", line 148, in setup
dist.run_commands()
File "/usr/lib/python3.5/distutils/dist.py", line 955, in run_commands
self.run_command(cmd)
File "/usr/lib/python3.5/distutils/dist.py", line 973, in run_command
cmd_obj.ensure_finalized()
File "/usr/lib/python3.5/distutils/cmd.py", line 107, in ensure_finalized
self.finalize_options()
File "setup.py", line 158, in finalize_options
self.test_args = []
AttributeError: can't set attribute