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from django.core.urlresolvers import RegexURLPattern, RegexURLResolver
from django.core.exceptions import ImproperlyConfigured
__all__ = ['handler404', 'handler500', 'include', 'patterns', 'url']
handler404 = 'django.views.defaults.page_not_found'
handler500 = 'django.views.defaults.server_error'
def include(arg, namespace=None, app_name=None):
if isinstance(arg, tuple):
# callable returning a namespace hint
if namespace:
raise ImproperlyConfigured('Cannot override the namespace for a dynamic module that provides a namespace')
urlconf_module, app_name, namespace = arg
else:
# No namespace hint - use manually provided namespace
urlconf_module = arg
return (urlconf_module, app_name, namespace)
def patterns(prefix, *args):
pattern_list = []
for t in args:
if isinstance(t, (list, tuple)):
t = url(prefix=prefix, *t)
elif isinstance(t, RegexURLPattern):
t.add_prefix(prefix)
pattern_list.append(t)
return pattern_list
def url(regex, view, kwargs=None, name=None, prefix=''):
if isinstance(view, (list,tuple)):
# For include(...) processing.
urlconf_module, app_name, namespace = view
return RegexURLResolver(regex, urlconf_module, kwargs, app_name=app_name, namespace=namespace)
else:
if isinstance(view, basestring):
if not view:
raise ImproperlyConfigured('Empty URL pattern view name not permitted (for pattern %r)' % regex)
if prefix:
view = prefix + '.' + view
return RegexURLPattern(regex, view, kwargs, name)
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