$ .../bzr.dev/bzr --no-plugins -Derror push
Using saved push location: ...
/usr/lib64/python2.6/site-packages/Crypto/Util/randpool.py:40: RandomPool_DeprecationWarning: This application uses RandomPool, which is BROKEN in older releases.  See http://www.pycrypto.org/randpool-broken
  RandomPool_DeprecationWarning)
bzr: ERROR: exceptions.ImportError: No module named testtools

Traceback (most recent call last):
  File ".../bzr.dev/bzrlib/commands.py", line 853, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File ".../bzr.dev/bzrlib/commands.py", line 1055, in run_bzr
    ret = run(*run_argv)
  File ".../bzr.dev/bzrlib/commands.py", line 661, in run_argv_aliases
    return self.run_direct(**all_cmd_args)
  File ".../bzr.dev/bzrlib/commands.py", line 665, in run_direct
    return self._operation.run_simple(*args, **kwargs)
  File ".../bzr.dev/bzrlib/cleanup.py", line 122, in run_simple
    self.cleanups, self.func, *args, **kwargs)
  File ".../bzr.dev/bzrlib/cleanup.py", line 156, in _do_with_cleanups
    result = func(*args, **kwargs)
  File ".../bzr.dev/bzrlib/builtins.py", line 1146, in run
    use_existing_dir=use_existing_dir)
  File ".../bzr.dev/bzrlib/push.py", line 81, in _show_push_branch
    to_transport = transport.get_transport(location)
  File ".../bzr.dev/bzrlib/transport/__init__.py", line 1589, in get_transport
    transport, last_err = _try_transport_factories(base, factory_list)
  File ".../bzr.dev/bzrlib/transport/__init__.py", line 1612, in _try_transport_factories
    return factory.get_obj()(base), None
  File ".../bzr.dev/bzrlib/registry.py", line 61, in get_obj
    self._do_import()
  File ".../bzr.dev/bzrlib/registry.py", line 70, in _do_import
    obj = __import__(self._module_name, globals(), locals(), names)
  File ".../bzr.dev/bzrlib/transport/sftp.py", line 890, in <module>
    from bzrlib.tests.stub_sftp import StubServer, StubSFTPServer
  File ".../bzr.dev/bzrlib/tests/__init__.py", line 53, in <module>
    import testtools
ImportError: No module named testtools