python单击返回帮助器菜单 [英] python Click Return the helper menu

问题描述

我刚刚开始使用python click模块，我希望它可以在单击引发错误时自动调出'--help'功能.

I just started using python click module and I would like to have it automatically bring up the '--help' function anytime click throws an error.

test.py

@click.command()
@click.option('--count', default=1, help='Number of greetings.')
@click.option('--name', default=Adam,
              help='The person to great.')
def test(name):
    print name

如果要从命令行以test.py --no_such_thing的身份运行脚本.有没有办法我可以得到--help而不是正常的帮助 :Error no Option --no_such_thing

If I was to run the script from the command line as test.py --no_such_thing. Is there a way I could get the --help to come up instead of the normal :Error no Option --no_such_thing

推荐答案

简而言之，您需要修改方法click.exceptions.UsageError.show. 但是，我在

In short, you need to modify the method click.exceptions.UsageError.show. But, I have posted a more in-depth answer to this question, along with sample code, in the answer to this SO post.

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