def __init__(self, paths, cache=False, extensions=None):
        '''
        :param paths: list of paths
        :param extensions: list of extensions
        '''
        self.extensions = extensions or []
        self.env = self._make_env(paths)
def __init__ ( self , paths , cache = False , extensions = None ) : self . extensions = extensions or [ ] self . env = self . _make_env ( paths )
:param paths: list of paths
        :param extensions: list of extensions