def __init__(self, source_path=None):
    """
    :param string source_path: Path to source `.md` file.
    """
    # Old-style class, so we must invoke __init__ this way.
    markdown.inlinepatterns.Pattern.__init__(self, INCLUDE_PATTERN)
    self.source_path = source_path
def __init__ ( self , source_path = None ) : markdown . inlinepatterns . Pattern . __init__ ( self , INCLUDE_PATTERN ) self . source_path = source_path
:param string source_path: Path to source `.md` file.