Bug#788697: FTBFS: ImportError: cannot import name component_re

[Chris West (Faux)]

Source: zope.traversing
Version: 3.13.2-2
Severity: serious
Justification: fails to build from source

Dear Maintainer,

The package fails to build in sid:

pydeb: Working on python distribution zope.traversing
Traceback (most recent call last):
  File "/usr/bin/van-pydeb", line 9, in <module>
    load_entry_point('van.pydeb==1.3.3', 'console_scripts', 'van-pydeb')()
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 552, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2672, in load_entry_point
    return ep.load()
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2345, in load
    return self.resolve()
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2351, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "/usr/lib/python2.7/dist-packages/van/pydeb/__init__.py", line 20, in <module>
    from pkg_resources import component_re # Is this a public interface?
ImportError: cannot import name component_re
pydeb: Working on binary package
ERROR: Expected binary package in debian/control but did not find it.
debian/rules:6: recipe for target 'binary' failed


The full build log can currently be seen on the Reproducible Builds builder:
https://reproducible.debian.net/rb-pkg/unstable/amd64/zope.traversing.html

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.19.0-20-generic (SMP w/8 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)