Function _issubclass

django/contrib/admin/checks.py:19–27

issubclass() variant that doesn't raise an exception if cls isn't a class.

(cls, classinfo)

def _issubclass(cls, classinfo):
    """
    issubclass() variant that doesn't raise an exception if cls isn't a
    class.
    """
    try:
        return issubclass(cls, classinfo)
    except TypeError:
        return False


def _contains_subclass(class_path, candidate_paths):