optparse.OptionConflictError: option -v/--verbose: conflicting option string(s): -v

[Matthias Runge]

[mrunge@turing horizon (django18)]$ ./run_tests.sh -N -P
Running Horizon application tests
Traceback (most recent call last):
  File "/home/mrunge/work/horizon/manage.py", line 23, in <module>
    execute_from_command_line(sys.argv)
  File "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line
    utility.execute()
  File "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 330, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/lib/python2.7/site-packages/django/core/management/commands/test.py", line 30, in run_from_argv
    super(Command, self).run_from_argv(argv)
  File "/usr/lib/python2.7/site-packages/django/core/management/base.py", line 378, in run_from_argv
    parser = self.create_parser(argv[0], argv[1])
  File "/usr/lib/python2.7/site-packages/django/core/management/base.py", line 327, in create_parser
    parser.add_option(opt)
  File "/usr/lib64/python2.7/optparse.py", line 1021, in add_option
    self._check_conflict(option)
  File "/usr/lib64/python2.7/optparse.py", line 996, in _check_conflict
    option)
optparse.OptionConflictError: option -v/--verbose: conflicting option string(s): -v

This happens with Django-1.8

[Matthias Runge (mrunge)]

./manage.py test horizon --settings=horizon.test.settings
spews out the same error.

[Matthias Runge (mrunge)]

this is most likely a django-nose issue: https://github.com/django-nose/django-nose/issues/178

[Richard Jones (r1chardj0n3s)]

I have Django 1.8.16 installed and this issue is no longer present.