[Bug 1603436] Re: Regression in python2.7 SRU breaks python-cassandra

[Chris J Arges]

Hello Max, or anyone else affected,

Accepted python-cassandra-driver into xenial-proposed. The package will
build now and be available at https://launchpad.net/ubuntu/+source
/python-cassandra-driver/2.5.1-1ubuntu0.1 in a few hours, and then in
the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.  Your feedback will aid us getting this update
out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed.  In either case, details of your testing will help
us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: python-cassandra-driver (Ubuntu Xenial)
       Status: In Progress => Fix Committed

** Tags added: verification-needed

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https://bugs.launchpad.net/bugs/1603436

Title:
  Regression in python2.7 SRU breaks python-cassandra

Status in python-cassandra-driver package in Ubuntu:
  Fix Released
Status in python2.7 package in Ubuntu:
  Invalid
Status in python-cassandra-driver source package in Xenial:
  Fix Committed
Status in python2.7 source package in Xenial:
  Invalid
Status in python-cassandra-driver source package in Yakkety:
  Fix Released
Status in python2.7 source package in Yakkety:
  Invalid

Bug description:
  "SRU: backport python 2.7.12 to 16.04 LTS" (bug 1591895) has caused a
  regression in (at least) python-cassandra. Any attempt to connect to a
  cluster fails due to:

  Traceback (most recent call last):
    File "/usr/lib/python2.7/dist-packages/cassandra/cluster.py", line 1894, in _reconnect_internal
      return self._try_connect(host)
    File "/usr/lib/python2.7/dist-packages/cassandra/cluster.py", line 1921, in _try_connect
      self_weakref = weakref.ref(self, callback=partial(_clear_watcher, weakref.proxy(connection)))
  TypeError: ref() does not take keyword arguments

  It would appear that Python 2.7.12 has made the permitted calling
  conventions for weakref.ref() stricter.

  See https://github.com/datastax/python-driver/pull/585 for upstream
  discussion of the issue.

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