from importlib import import_module
from django.core.exceptions import ImproperlyConfigured
[docs]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.
.. warning::
.. deprecated:: Django 1.6
Function :py:func:`django.utils.module_loading.import_by_path` has
been added in Django 1.6.
:param dotted_path: Path to imported attribute or class
:type dotted_path: str
:return: imported attribute or class
"""
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)
raise ImproperlyConfigured(msg)
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