[Python-modules-team] Bug#731299: python-pytest: Broken because of pkg_resources.VersionConflict

[Nikolaus Rath]

Package: python-pytest
Version: 2.2.4-2
Severity: grave
Justification: renders package unusable

With latest python3-pytest from sid, I get

# py.test-3.3
Traceback (most recent call last):
  File "/usr/bin/py.test-3.3", line 5, in <module>
    sys.exit(load_entry_point('pytest==2.4.2', 'console_scripts', 'py.test')())
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 357, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2394, in load_entry_point
    return ep.load()
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2107, in load
    if require: self.require(env, installer)
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2120, in require
    working_set.resolve(self.dist.requires(self.extras),env,installer)))
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 580, in resolve
    raise VersionConflict(dist,req) # XXX put more info here
pkg_resources.VersionConflict: (py 1.4.15 (/usr/lib/python3/dist-packages), Requirement.parse('py>=1.4.17'))