在 argparse 中带有破折号的选项 [英] Having options in argparse with a dash

问题描述

我想在 argparse 模块中有一些选项，例如 --pm-export 但是当我尝试像 args.pm-export 一样使用它时，我收到错误没有属性pm.我怎样才能解决这个问题?是否可以在命令行选项中使用 -?

I want to have some options in argparse module such as --pm-export however when I try to use it like args.pm-export I get the error that there is not attribute pm. How can I get around this issue? Is it possible to have - in command line options?

推荐答案

As 指出在 argparse 文档中:

As indicated in the argparse docs:

对于可选参数操作，dest 的值通常是从选项字符串中推断出来的.ArgumentParser 通过获取第一个长选项字符串并剥离初始--字符串来生成 dest 的值.任何内部-字符将被转换为_字符以确保字符串是一个有效的属性名称

For optional argument actions, the value of dest is normally inferred from the option strings. ArgumentParser generates the value of dest by taking the first long option string and stripping away the initial -- string. Any internal - characters will be converted to _ characters to make sure the string is a valid attribute name

所以你应该使用 args.pm_export.

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