Cannot import twisted.conch

[Gavin Panella]

$ python3 -c 'import twisted.conch'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib/python3/dist-packages/twisted/conch/__init__.py", line 9, in <module>
    from twisted.conch._version import version
ImportError: No module named 'twisted.conch._version'

The _version module is missing, but other files are there:

$ find /usr/lib/python3/dist-packages/twisted/conch -name '*.py'
/usr/lib/python3/dist-packages/twisted/conch/__init__.py
/usr/lib/python3/dist-packages/twisted/conch/test/__init__.py
/usr/lib/python3/dist-packages/twisted/conch/test/keydata.py
/usr/lib/python3/dist-packages/twisted/conch/test/test_keys.py
/usr/lib/python3/dist-packages/twisted/conch/ssh/keys.py
/usr/lib/python3/dist-packages/twisted/conch/ssh/__init__.py
/usr/lib/python3/dist-packages/twisted/conch/ssh/common.py
/usr/lib/python3/dist-packages/twisted/conch/ssh/sexpy.py

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: python3-twisted 16.0.0~pre1-1
ProcVersionSignature: Ubuntu 4.4.0-7.22-generic 4.4.2
Uname: Linux 4.4.0-7-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Feb 24 17:23:07 2016
InstallationDate: Installed on 2014-03-16 (709 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140316)
PackageArchitecture: all
SourcePackage: twisted
UpgradeStatus: Upgraded to xenial on 2015-11-22 (93 days ago)

[Launchpad Janitor (janitor)]

This bug was fixed in the package twisted - 16.0.0~pre1-2ubuntu1

---------------
twisted (16.0.0~pre1-2ubuntu1) xenial; urgency=medium

  * Add twisted.conch._version for Python3 installations. LP: #1549389.

 -- Matthias Klose <email address hidden> Wed, 24 Feb 2016 23:46:18 +0100