()
return _state.filename()
Return the name of the file currently being read.
    Before the first line has been read, returns None.
Return the name of the file currently being read.
    Before the first line has been read, returns None.
Return the name of the file currently being read . Before the first line has been read returns None .
def filename():
    """
    Return the name of the file currently being read.
    Before the first line has been read, returns None.
    """
    if not _state:
        raise RuntimeError("no active input()")
    return _state.filename()
def filename ( ) : if not _state : raise RuntimeError ( "no active input()" ) return _state . filename ( )