def _init_module_attrs()

in library/_frozen_importlib.py [0:0]

• 49 lines of code
• 33 McCabe index (conditional complexity)

def _init_module_attrs(spec, module, *, override=False):
    # The passed-in module may be not support attribute assignment,
    # in which case we simply don't set the attributes.
    # __name__
    if override or getattr(module, "__name__", None) is None:
        try:
            module.__name__ = spec.name
        except AttributeError:
            pass
    # __loader__
    if override or getattr(module, "__loader__", None) is None:
        loader = spec.loader
        if loader is None:
            # A backward compatibility hack.
            if spec.submodule_search_locations is not None:
                if _bootstrap_external is None:
                    raise NotImplementedError
                _NamespaceLoader = _bootstrap_external._NamespaceLoader

                loader = _NamespaceLoader.__new__(_NamespaceLoader)
                loader._path = spec.submodule_search_locations
                spec.loader = loader
                # While the docs say that module.__file__ is not set for
                # built-in modules, and the code below will avoid setting it if
                # spec.has_location is false, this is incorrect for namespace
                # packages.  Namespace packages have no location, but their
                # __spec__.origin is None, and thus their module.__file__
                # should also be None for consistency.  While a bit of a hack,
                # this is the best place to ensure this consistency.
                #
                # See # https://docs.python.org/3/library/importlib.html#importlib.abc.Loader.load_module  # noqa:B950
                # and bpo-32305
                module.__file__ = None
        try:
            module.__loader__ = loader
        except AttributeError:
            pass
    # __package__
    if override or getattr(module, "__package__", None) is None:
        try:
            module.__package__ = spec.parent
        except AttributeError:
            pass
    # __spec__
    try:
        module.__spec__ = spec
    except AttributeError:
        pass
    # __path__
    if override or getattr(module, "__path__", None) is None:
        if spec.submodule_search_locations is not None:
            try:
                module.__path__ = spec.submodule_search_locations
            except AttributeError:
                pass
    # __file__/__cached__
    if spec.has_location:
        if override or getattr(module, "__file__", None) is None:
            try:
                module.__file__ = spec.origin
            except AttributeError:
                pass

        if override or getattr(module, "__cached__", None) is None:
            if spec.cached is not None:
                try:
                    module.__cached__ = spec.cached
                except AttributeError:
                    pass
    return module