ImportError: cannot import name error

[Peter Dyballa]

In order to become able to import hg or bzr repositories with git I was advised on the internet to install the bzr fastimport plugin (https://github.com/lelutin/git-remote-bzr). After fetching and installing the software I tried the selftest, which first failed, because the Python testtools was not installed. After its installation the selftest now really failed.

This is on Mac OS X 10.6.8 (Snow Leopard) with Python 2.7 installed via the MacPorts port manager. Bzr is:

bzr selftest fastimport
bzr: ERROR: exceptions.ImportError: cannot import name error

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 4197, in run
    result = tests.selftest(**selftest_kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/tests/__init__.py", line 3734, in selftest
    suite = test_suite(keep_only, starting_with)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/tests/__init__.py", line 4225, in test_suite
    plugin_suite = plugin.test_suite()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/plugin.py", line 555, in test_suite
    return self.module.test_suite()
  File "/Users/pete/.bazaar/plugins/fastimport/__init__.py", line 91, in test_suite
    return tests.test_suite()
  File "/Users/pete/.bazaar/plugins/fastimport/tests/__init__.py", line 35, in test_suite
    return loader.loadTestsFromModuleNames(module_names)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/tests/TestUtil.py", line 148, in loadTestsFromModuleNames
    result.addTests(self.loadTestsFromModuleName(name))
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/tests/TestUtil.py", line 153, in loadTestsFromModuleName
    module = pyutils.get_named_object(name)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bzrlib/pyutils.py", line 58, in get_named_object
    __import__(module_name, globals(), locals(), [])
  File "/Users/pete/.bazaar/plugins/fastimport/tests/test_generic_processor.py", line 29, in <module>
    from bzrlib.plugins.fastimport.processors import (
  File "/Users/pete/.bazaar/plugins/fastimport/processors/generic_processor.py", line 31, in <module>
    from bzrlib.plugins.fastimport import (
  File "/Users/pete/.bazaar/plugins/fastimport/branch_updater.py", line 22, in <module>
    from bzrlib.trace import error, note
ImportError: cannot import name error

bzr 2.6.0 on python 2.7.5 (Darwin-10.8.0-x86_64-i386-64bit)
arguments: ['/opt/local/bin/bzr', 'selftest', 'fastimport']
plugins: bash_completion[2.6.0], changelog_merge[2.6.0], fastimport[0.9.0dev],
    grep[2.6.0], launchpad[2.6.0], netrc_credential_store[2.6.0],
    news_merge[2.6.0], po_merge[2.6.0], weave_fmt[2.6.0]
encoding: 'utf-8', fsenc: 'utf-8', lang: 'de_DE.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.
Exit 4

[Vincent Ladeuil (vila)]

error and note were deprecated in 2.1.0 and removed from trace.py in the 2.4 cycle.

At that point the their code was:

@deprecated_function(deprecated_in((2, 1, 0)))
def info(*args, **kwargs):
    """Deprecated: use trace.note instead."""
    note(*args, **kwargs)

@deprecated_function(deprecated_in((2, 1, 0)))
def log_error(*args, **kwargs):
    """Deprecated: use bzrlib.trace.show_error instead"""
    _bzr_logger.error(*args, **kwargs)

@deprecated_function(deprecated_in((2, 1, 0)))
def error(*args, **kwargs):
    """Deprecated: use bzrlib.trace.show_error instead"""
    _bzr_logger.error(*args, **kwargs)

So the plugin needs to be updated.