autoflake.py
def get_messages_by_line(messages):
    """Return dictionary that maps line number to message."""
    line_messages = {}
    for message in messages:
        line_messages[message.lineno] = message
    return line_messages
def get_messages_by_line(messages):
    """Return dictionary that maps line number to message."""
    line_messages = {}
    for message in messages:
        line_messages[message.lineno] = message
    return line_messages
Return dictionary that maps line number to message.