1 from django.core.urlresolvers import RegexURLPattern, RegexURLResolver

     2 from django.core.exceptions import ImproperlyConfigured

     3 

     4 __all__ = ['handler404', 'handler500', 'include', 'patterns', 'url']

     5 

     6 handler404 = 'django.views.defaults.page_not_found'

     7 handler500 = 'django.views.defaults.server_error'

     8 

     9 include = lambda urlconf_module: [urlconf_module]

    10 

    11 def patterns(prefix, *args):

    12     pattern_list = []

    13     for t in args:

    14         if isinstance(t, (list, tuple)):

    15             t = url(prefix=prefix, *t)

    16         elif isinstance(t, RegexURLPattern):

    17             t.add_prefix(prefix)

    18         pattern_list.append(t)

    19     return pattern_list

    20 

    21 def url(regex, view, kwargs=None, name=None, prefix=''):

    22     if type(view) == list:

    23         # For include(...) processing.

    24         return RegexURLResolver(regex, view[0], kwargs)

    25     else:

    26         if isinstance(view, basestring):

    27             if not view:

    28                 raise ImproperlyConfigured('Empty URL pattern view name not permitted (for pattern %r)' % regex)

    29             if prefix:

    30                 view = prefix + '.' + view

    31         return RegexURLPattern(regex, view, kwargs, name)

    32