[Python-modules-team] Bug#807157: Mock fails to import

[Arto Jantunen]

Package: python-mock
Version: 1.3.0-2.1
Severity: grave

Trying to import mock returns the following traceback:

>>> import mock
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python2.7/dist-packages/mock/__init__.py", line 2, in <module>
    import mock.mock as _mock
  File "/usr/lib/python2.7/dist-packages/mock/mock.py", line 69, in <module>
    from pbr.version import VersionInfo
  File "/usr/lib/python2.7/dist-packages/pbr/version.py", line 25, in <module>
    import pkg_resources
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 90, in <module>
    packaging = pkg_resources._vendor.packaging
AttributeError: 'module' object has no attribute '_vendor'

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (101, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.2.6 (SMP w/2 CPU cores; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=fi_FI.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages python-mock depends on:
ii  python-funcsigs  0.4-2
ii  python-pbr       1.8.0-4
ii  python-six       1.10.0-1
pn  python:any       <none>

python-mock recommends no packages.

Versions of packages python-mock suggests:
pn  python-mock-doc  <none>

-- no debconf information