使用ArgParse结合两个不同参数的帮助消息

发布于 2025-02-11 02:25:10 字数 1069 浏览 1 评论 0原文

我正在编写一个代码，该代码必须与Python-3.8+兼容，并且具有CLI。在这个CLI中，我有一个可选的论点，应该是布尔国旗。我将其定义为这样：

import argparse

parser = argparse.ArgumentParser(description="test parser")
group = parser.add_mutually_exclusive_group(required=False)
group.add_argument('--feature', action='store_true', dest='feature', help="help 1")
group.add_argument('--no-feature', action='store_false', dest='feature', help="help 2")
group.set_defaults(feature=True)

命令的行为是按预期的，但是我的问题在于帮助消息。每当显示出来时，它看起来都这样：

usage: test [--feature | --no-feature]

optional arguments:
  -h, --help            show this help message and exit
  --feature             help 1
  --no-feature          help 2

我应该如何修改此代码，因此帮助消息的输出是类似于使用Python-3.9+ action = argparse.booleanoptionalactional 在python3.8+的同时保持兼容？

我期望的输出应该看起来像这样：

usage: test [--feature | --no-feature]

optional arguments:
  -h, --help                 show this help message and exit
  --feature, --no-feature    help 1 & 2

原文

I'm writing a code that is required to be compatible with Python-3.8+, and it have a CLI. In this CLI I have an optional argument that is supposed to be a boolean flag. I define it as such:

import argparse

parser = argparse.ArgumentParser(description="test parser")
group = parser.add_mutually_exclusive_group(required=False)
group.add_argument('--feature', action='store_true', dest='feature', help="help 1")
group.add_argument('--no-feature', action='store_false', dest='feature', help="help 2")
group.set_defaults(feature=True)

The command behave as expected, however, my problem lies with the help message. Whenever it shows up, it would look like this:

usage: test [--feature | --no-feature]

optional arguments:
  -h, --help            show this help message and exit
  --feature             help 1
  --no-feature          help 2

How should I modify this code so the output of the help message is instead something like the help message we get when using python-3.9+ action=argparse.BooleanOptionalAction while remaining compatible for Python3.8+ ?

The output I expect should look like this:

usage: test [--feature | --no-feature]

optional arguments:
  -h, --help                 show this help message and exit
  --feature, --no-feature    help 1 & 2

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