Tests fail with Python 2.7

[Christian Faulhammer]

From a distant corner of my head I remember something similar happened with the Bazaar test suite itself.

****************************************
make -j14 -j14 -j1 check
BZR_PLUGINS_AT=rewrite@/var/tmp/portage/dev-vcs/bzr-rewrite-0.6.1/work/bzr-rewrite-0.6.1 /usr/bin/python /usr/bin/bzr selftest --starting-with=bzrlib.plugins.rewrite
bzr: ERROR: exceptions.AttributeError: 'module' object has no attribute '_WritelnDecorator'

Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/bzrlib/commands.py", line 912, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/bzrlib/commands.py", line 1112, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.7/site-packages/bzrlib/commands.py", line 690, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.7/site-packages/bzrlib/commands.py", line 705, in run
    return self._operation.run_simple(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/bzrlib/cleanup.py", line 135, in run_simple
    self.cleanups, self.func, *args, **kwargs)
  File "/usr/lib/python2.7/site-packages/bzrlib/cleanup.py", line 165, in _do_with_cleanups
    result = func(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/bzrlib/builtins.py", line 3641, in run
    result = selftest(**selftest_kwargs)
  File "/usr/lib/python2.7/site-packages/bzrlib/tests/__init__.py", line 3481, in selftest
    result_decorators=result_decorators,
  File "/usr/lib/python2.7/site-packages/bzrlib/tests/__init__.py", line 2967, in run_suite
    result_decorators=result_decorators,
  File "/usr/lib/python2.7/site-packages/bzrlib/tests/__init__.py", line 621, in __init__
    self.stream = unittest._WritelnDecorator(stream)
AttributeError: 'module' object has no attribute '_WritelnDecorator'

bzr 2.2.2 on python 2.7.1 (Linux-2.6.37-i686-Quad-Core_AMD_Opteron-tm-_Processor_2350-with-gentoo-2.0.1)
arguments: ['/usr/bin/bzr', 'selftest', '--starting-with=bzrlib.plugins.rewrite']
encoding: 'UTF-8', fsenc: 'UTF-8', lang: 'en_US.utf8'
plugins:
  bash_completion /usr/lib/python2.7/site-packages/bzrlib/plugins/bash_completion [2.2.2]
  launchpad /usr/lib/python2.7/site-packages/bzrlib/plugins/launchpad [2.2.2]
  netrc_credential_store /usr/lib/python2.7/site-packages/bzrlib/plugins/netrc_credential_store [2.2.2]
  news_merge /usr/lib/python2.7/site-packages/bzrlib/plugins/news_merge [2.2.2]
  rewrite /var/tmp/portage/dev-vcs/bzr-rewrite-0.6.1/work/bzr-rewrite-0.6.1 [0.6.1]

*** Bazaar has encountered an internal error. This probably indicates a
    bug in Bazaar. You can help us fix it by filing a bug report at
        https://bugs.launchpad.net/bzr/+filebug
    including this traceback and a description of the problem.

[Jelmer Vernooij (jelmer)]

This is fixed in trunk.