When debugging fullstack tests, "cmd" module is incorrectly imported

[Rodolfo Alonso]

When fullstack tests are executed manually with a debugger (e.g.: PyCharm integrated debugger), the "cmd" folder is imported instead of "cmd" [1] module.

To solve this problem, this folder and the references to this path must be changed.

Error received when executing manually a fullstack test:
Traceback (most recent call last):
  File "/opt/stack/pycharm-community-2018.2.3/helpers/pycharm/_jb_unittest_runner.py", line 35, in <module>
    main(argv=args, module=None, testRunner=unittestpy.TeamcityTestRunner, buffer=not JB_DISABLE_BUFFERING)
  File "/usr/lib/python2.7/unittest/main.py", line 94, in __init__
    self.parseArgs(argv)
  File "/usr/lib/python2.7/unittest/main.py", line 149, in parseArgs
    self.createTests()
  File "/usr/lib/python2.7/unittest/main.py", line 158, in createTests
    self.module)
  File "/usr/lib/python2.7/unittest/loader.py", line 130, in loadTestsFromNames
    suites = [self.loadTestsFromName(name, module) for name in names]
  File "/usr/lib/python2.7/unittest/loader.py", line 91, in loadTestsFromName
    module = __import__('.'.join(parts_copy))
  File "/opt/stack/neutron/neutron/tests/fullstack/test_qos.py", line 21, in <module>
    import testscenarios
  File "/usr/local/lib/python2.7/dist-packages/testscenarios/__init__.py", line 58, in <module>
    from testscenarios.scenarios import (
  File "/usr/local/lib/python2.7/dist-packages/testscenarios/scenarios.py", line 33, in <module>
    from testtools.testcase import clone_test_with_new_id
  File "/usr/local/lib/python2.7/dist-packages/testtools/__init__.py", line 61, in <module>
    from testtools.matchers._impl import (
  File "/usr/local/lib/python2.7/dist-packages/testtools/matchers/__init__.py", line 92, in <module>
    from ._doctest import (
  File "/usr/local/lib/python2.7/dist-packages/testtools/matchers/_doctest.py", line 7, in <module>
    import doctest
  File "/usr/lib/python2.7/doctest.py", line 99, in <module>
    import unittest, difflib, pdb, tempfile
  File "/usr/lib/python2.7/pdb.py", line 59, in <module>
    class Pdb(bdb.Bdb, cmd.Cmd):
AttributeError: 'module' object has no attribute 'Cmd'

[1] https://docs.python.org/3/library/cmd.html

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/620916

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/620916
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=b617df2b2158fb3668795d8db9e112b27d083623
Submitter: Zuul
Branch: master

commit b617df2b2158fb3668795d8db9e112b27d083623
Author: Rodolfo Alonso Hernandez <email address hidden>
Date: Thu Nov 29 13:55:21 2018 +0000

    Change "cmd" folder in fullstack tests

    When fullstack tests are executed manually using a debugger
    (e.g.: PyCharm integrated debugger), the "cmd" folder is imported
    instead of "cmd" [1] module.

    To solve this problem, this folder and the references to this path
    must be changed.

    [1] https://docs.python.org/3/library/cmd.html

    Change-Id: I8e6b6995c10875a882a46ca3a0d779aafda124a3
    Closes-Bug: #1805844

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron 14.0.0.0b1 development milestone.