%  bzr pull
bzr: ERROR: exceptions.TypeError: first argument must be string or compiled pattern

Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/commands.py", line 930, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/commands.py", line 1121, in run_bzr
    ret = run(*run_argv)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/commands.py", line 673, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/commands.py", line 697, in run
    return self._operation.run_simple(*args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/cleanup.py", line 136, in run_simple
    self.cleanups, self.func, *args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/cleanup.py", line 166, in _do_with_cleanups
    result = func(*args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/builtins.py", line 1210, in run
    self.outf.write(gettext("Using saved parent location: %s\n") % display_url)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/lazy_import.py", line 117, in __call__
    return obj(*args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/i18n.py", line 40, in gettext
    install()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/i18n.py", line 92, in install
    _translations = install_translations(lang)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/i18n.py", line 114, in install_translations
    fallback=True)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/gettext.py", line 554, in translation
    t = _translations.setdefault(key, class_(fp))
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/gettext.py", line 255, in __init__
    self._parse(fp)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/gettext.py", line 391, in _parse
    self.plural = c2py(plural)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/gettext.py", line 177, in c2py
    result, nexttok = _parse(_tokenize(plural))
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/gettext.py", line 114, in _parse
    nexttok = next(tokens)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/gettext.py", line 85, in _tokenize
    for mo in re.finditer(_token_pattern, plural):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/re.py", line 190, in finditer
    return _compile(pattern, flags).finditer(string)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/re.py", line 247, in _compile
    raise TypeError, "first argument must be string or compiled pattern"
TypeError: first argument must be string or compiled pattern

bzr 2.6.0 on python 2.7.13 (Darwin-16.4.0-x86_64-i386-64bit)
arguments: ['/opt/local/bin/bzr', 'pull']
plugins: bash_completion[2.6.0], bisect[1.1.0dev], changelog_merge[2.6.0],
    diff_revid[unknown], extmerge[unknown], fastimport[0.14.0dev],
    grep[2.6.0], launchpad[2.6.0], netrc_credential_store[2.6.0],
    news_merge[2.6.0], po_merge[2.6.0], qbzr[0.23.2], weave_fmt[2.6.0]
encoding: 'utf-8', fsenc: 'utf-8', lang: 'en_GB.UTF-8'

*** 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.