def _isdst(self, dt):
try:
return super(LocalTimezone, self)._isdst(dt)
except (OverflowError, ValueError) as exc:
exc_type = type(exc)
exc_value = exc_type(
"Unsupported value: %r. You should install pytz." % dt)
exc_value.__cause__ = exc
if not hasattr(exc, '__traceback__'):
exc.__traceback__ = sys.exc_info()[2]
six.reraise(exc_type, exc_value, sys.exc_info()[2])
def _isdst(self, dt):
try:
return super(LocalTimezone, self)._isdst(dt)
except (OverflowError, ValueError) as exc:
exc_type = type(exc)
exc_value = exc_type(
"Unsupported value: %r. You should install pytz." % dt)
exc_value.__cause__ = exc
if not hasattr(exc, '__traceback__'):
exc.__traceback__ = sys.exc_info()[2]
six.reraise(exc_type, exc_value, sys.exc_info()[2])
def import_by_path(dotted_path, error_prefix=''):
"""
Import a dotted module path and return the attribute/class designated by the
last name in the path. Raise ImproperlyConfigured if something goes wrong.
"""
try:
module_path, class_name = dotted_path.rsplit('.', 1)
except ValueError:
raise ImproperlyConfigured("%s%s doesn't look like a module path" % (
error_prefix, dotted_path))
try:
module = import_module(module_path)
except ImportError as e:
msg = '%sError importing module %s: "%s"' % (
error_prefix, module_path, e)
six.reraise(ImproperlyConfigured, ImproperlyConfigured(msg),
sys.exc_info()[2])
try:
attr = getattr(module, class_name)
except AttributeError:
raise ImproperlyConfigured('%sModule "%s" does not define a "%s" attribute/class' % (
error_prefix, module_path, class_name))
return attr
