explorer fails to start when bzr < 1.16

[Jesse N. Richardson]

This is the terminal output:
jesse@jesse-desktop:~/Build/qbzr$ bzr explorer

(<unknown>:27643): Gtk-WARNING **: Unable to locate theme engine in module_path: "ubuntulooks",
bzr: ERROR: exceptions.ImportError: cannot import name parent_directories

Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 716, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 911, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 547, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/home/jesse/.bazaar/plugins/explorer/__init__.py", line 126, in run
    window = explorer.QExplorerMainWindow(location=location, profile=hat,
  File "/usr/lib/python2.6/dist-packages/bzrlib/lazy_import.py", line 106, in __getattribute__
    obj = _replace()
  File "/usr/lib/python2.6/dist-packages/bzrlib/lazy_import.py", line 89, in _replace
    obj = factory(self, scope, name)
  File "/usr/lib/python2.6/dist-packages/bzrlib/lazy_import.py", line 192, in _import
    module = __import__(module_python_path, scope, scope, [member])
  File "/home/jesse/.bazaar/plugins/explorer/lib/explorer.py", line 31, in <module>
    from bzrlib.plugins.explorer.lib import (
  File "/home/jesse/.bazaar/plugins/explorer/lib/wt_browser.py", line 21, in <module>
    from bzrlib.osutils import parent_directories
ImportError: cannot import name parent_directories

bzr 1.13.1 on python 2.6.2 (linux2)
arguments: ['/usr/bin/bzr', 'explorer']
encoding: 'UTF-8', fsenc: 'UTF-8', lang: 'en_US.UTF-8'
plugins:
  bzrtools /usr/lib/python2.6/dist-packages/bzrlib/plugins/bzrtools [1.13]
  dbus /usr/lib/python2.6/dist-packages/bzrlib/plugins/dbus [unknown]
  explorer /home/jesse/.bazaar/plugins/explorer [0.8]
  gtk /usr/lib/python2.6/dist-packages/bzrlib/plugins/gtk [0.96.0.dev.1]
  launchpad /usr/lib/python2.6/dist-packages/bzrlib/plugins/launchpad [unknown]
  netrc_credential_store /usr/lib/python2.6/dist-packages/bzrlib/plugins/netrc_credential_store [unknown]
  qbzr /home/jesse/.bazaar/plugins/qbzr [0.14.2]
  rebase /usr/lib/python2.6/dist-packages/bzrlib/plugins/rebase [0.4.4]
  search /usr/lib/python2.6/dist-packages/bzrlib/plugins/search [1.7dev]
  stats /usr/lib/python2.6/dist-packages/bzrlib/plugins/stats [unknown]
  svn /usr/lib/python2.6/dist-packages/bzrlib/plugins/svn [0.5.3]
  upload /usr/lib/python2.6/dist-packages/bzrlib/plugins/upload [0.1]
  xmloutput /usr/lib/python2.6/dist-packages/bzrlib/plugins/xmloutput [0.8.3]
*** Bazaar has encountered an internal error.
    Please report a bug at https://bugs.launchpad.net/bzr/+filebug
    including this traceback, and a description of what you
    were doing when the error occurred.
jesse@jesse-desktop:~/Build/qbzr$ bzr explorer

(<unknown>:27645): Gtk-WARNING **: Unable to locate theme engine in module_path: "ubuntulooks",
bzr: ERROR: exceptions.ImportError: cannot import name parent_directories

Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 716, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 911, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 547, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/home/jesse/.bazaar/plugins/explorer/__init__.py", line 126, in run
    window = explorer.QExplorerMainWindow(location=location, profile=hat,
  File "/usr/lib/python2.6/dist-packages/bzrlib/lazy_import.py", line 106, in __getattribute__
    obj = _replace()
  File "/usr/lib/python2.6/dist-packages/bzrlib/lazy_import.py", line 89, in _replace
    obj = factory(self, scope, name)
  File "/usr/lib/python2.6/dist-packages/bzrlib/lazy_import.py", line 192, in _import
    module = __import__(module_python_path, scope, scope, [member])
  File "/home/jesse/.bazaar/plugins/explorer/lib/explorer.py", line 31, in <module>
    from bzrlib.plugins.explorer.lib import (
  File "/home/jesse/.bazaar/plugins/explorer/lib/wt_browser.py", line 21, in <module>
    from bzrlib.osutils import parent_directories
ImportError: cannot import name parent_directories

bzr 1.13.1 on python 2.6.2 (linux2)
arguments: ['/usr/bin/bzr', 'explorer']
encoding: 'UTF-8', fsenc: 'UTF-8', lang: 'en_US.UTF-8'
plugins:
  bzrtools /usr/lib/python2.6/dist-packages/bzrlib/plugins/bzrtools [1.13]
  dbus /usr/lib/python2.6/dist-packages/bzrlib/plugins/dbus [unknown]
  explorer /home/jesse/.bazaar/plugins/explorer [0.8]
  gtk /usr/lib/python2.6/dist-packages/bzrlib/plugins/gtk [0.96.0.dev.1]
  launchpad /usr/lib/python2.6/dist-packages/bzrlib/plugins/launchpad [unknown]
  netrc_credential_store /usr/lib/python2.6/dist-packages/bzrlib/plugins/netrc_credential_store [unknown]
  qbzr /home/jesse/.bazaar/plugins/qbzr [0.14.2]
  rebase /usr/lib/python2.6/dist-packages/bzrlib/plugins/rebase [0.4.4]
  search /usr/lib/python2.6/dist-packages/bzrlib/plugins/search [1.7dev]
  stats /usr/lib/python2.6/dist-packages/bzrlib/plugins/stats [unknown]
  svn /usr/lib/python2.6/dist-packages/bzrlib/plugins/svn [0.5.3]
  upload /usr/lib/python2.6/dist-packages/bzrlib/plugins/upload [0.1]
  xmloutput /usr/lib/python2.6/dist-packages/bzrlib/plugins/xmloutput [0.8.3]
*** Bazaar has encountered an internal error.
    Please report a bug at https://bugs.launchpad.net/bzr/+filebug
    including this traceback, and a description of what you
    were doing when the error occurred.

[Ian Clatworthy (ian-clatworthy)]

You need to upgrade to bzr 1.16 or later. I'll look at adding the function in question to explorer as I'm sure this will bite others as well.

[Ian Clatworthy (ian-clatworthy)]

Fixed in rev 279.