"ValueError: unknown locale: en_NG" in Django 1.5

[lanre.hbs@…]

I get the error

ValueError: unknown locale: en_NG

after I create a new Django 1.5 project, run "python manage.py syncdb" and attempt to define a superuser. This was also a bug in Django 1.4 when it was first released but was eventually fixed.

[Claude Paroz]

Please run the command with the --traceback option and provide the full traceback on the ticket.

[lanre.hbs@…]

Please find the full traceback below based on including the --traceback option:

Traceback (most recent call last):
  File "/home/lanre/.virtualenvs/D1.5R/local/lib/python2.7/site-packages/django/core/management/base.py", line 222, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/home/lanre/.virtualenvs/D1.5R/local/lib/python2.7/site-packages/django/core/management/base.py", line 255, in execute
    output = self.handle(*args, **options)
  File "/home/lanre/.virtualenvs/D1.5R/local/lib/python2.7/site-packages/django/core/management/base.py", line 385, in handle
    return self.handle_noargs(**options)
  File "/home/lanre/.virtualenvs/D1.5R/local/lib/python2.7/site-packages/django/core/management/commands/syncdb.py", line 109, in handle_noargs
    emit_post_sync_signal(created_models, verbosity, interactive, db)
  File "/home/lanre/.virtualenvs/D1.5R/local/lib/python2.7/site-packages/django/core/management/sql.py", line 195, in emit_post_sync_signal
    interactive=interactive, db=db)
  File "/home/lanre/.virtualenvs/D1.5R/local/lib/python2.7/site-packages/django/dispatch/dispatcher.py", line 170, in send
    response = receiver(signal=self, sender=sender, **named)
  File "/home/lanre/.virtualenvs/D1.5R/local/lib/python2.7/site-packages/django/contrib/auth/management/__init__.py", line 117, in create_superuser
    call_command("createsuperuser", interactive=True, database=db)
  File "/home/lanre/.virtualenvs/D1.5R/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 161, in call_command
    return klass.execute(*args, **defaults)
  File "/home/lanre/.virtualenvs/D1.5R/local/lib/python2.7/site-packages/django/core/management/base.py", line 255, in execute
    output = self.handle(*args, **options)
  File "/home/lanre/.virtualenvs/D1.5R/local/lib/python2.7/site-packages/django/contrib/auth/management/commands/createsuperuser.py", line 79, in handle
    default_username = get_default_username()
  File "/home/lanre/.virtualenvs/D1.5R/local/lib/python2.7/site-packages/django/contrib/auth/management/__init__.py", line 161, in get_default_username
    default_username = get_system_username()
  File "/home/lanre/.virtualenvs/D1.5R/local/lib/python2.7/site-packages/django/contrib/auth/management/__init__.py", line 136, in get_system_username
    default_locale = locale.getdefaultlocale()[1]
  File "/home/lanre/.virtualenvs/D1.5R/lib/python2.7/locale.py", line 511, in getdefaultlocale
    return _parse_localename(localename)
  File "/home/lanre/.virtualenvs/D1.5R/lib/python2.7/locale.py", line 443, in _parse_localename
    raise ValueError, 'unknown locale: %s' % localename
ValueError: unknown locale: en_NG

[Claude Paroz]

Thanks for the traceback.

Python-related bugs:

• ​http://bugs.python.org/issue813449
• ​http://bugs.python.org/issue504219

Related Django ticket: #16017

We should definitely catch ValueError in get_system_username.

[Claude Paroz]

Using DEFAULT_LOCALE_ENCODING

[Claude Paroz <claude@…>]

In 8e8c9b908a0fe0d2437fcf3f0378eb2a62b81986:

Fixed getting default encoding in get_system_username

Refs #19933.

[Claude Paroz <claude@…>]

In 327c98ff08a95205919df4ae31dc633c1acec643:

[1.5.x] Fixed #19933 -- Catched ValueError in get_system_username

Thanks lanre.hbs at gmail.com for the report.

[Claude Paroz]

As you can see by comparing the patches, I chose a different fix for stable (minimal potential impact) and master (bit of refactoring).