Bug report Bug description: Given this example script import argparse class CsvListAction(argparse.Action): """ argparse Action to convert "a,b,c" into ["a", "b", "c"] """ def __call__(self, parser, namespace, values, option_string=None)...
在Python的argparse模块中,当程序用于处理命令行参数时,如果定义了多个参数选项具有相同的字符串表示形式,例如’—title’,argparse模块就会抛出argparse.ArgumentError: argument --title: conflicting option string: --title错误。这是因为argparse模块无法区分这些具有相同字符串表示的参数选项。解决这个问题的方法有几种:...
The option being defined can take a value, but it is optional rather than required. If the option is seen more than once when parsing arguments, only the last value seen is saved. This means the resulting flag variable created byargparsewill zero elements if no value was given with the op...
$ pytest Traceback (most recent call last): File "/Library/Frameworks/Python.framework/Versions/3.8/bin/pytest", line 8, in <module> sys.exit(console_main()) File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-pack...
argparse.ArgumentError: argument -V/--ver: conflicting option string: -V. Pytest was clearly telling us that the -V option was being used elsewhere. But it was not clear about where the ‘used elsewhere’ was located. Further, while we knew what the error meant but could not understand ...
这个对象将参数值作为属性保存,所以如果参数的 dest 被设为 "myoption",参数值可以通过 args.myoption 的方式获取。 简单的例子 以下是一个有三个不同选项的例子:一个布尔型选项 (-a), 一个简单的字符串选项 (-b), 和一个整数选项 (-c)。 argparse_short.py import argparse parser = argparse....
Here is a simple example with 3 different options: a boolean option (-a), a simple string option (-b), and an integer option (-c). import argparse parser = argparse.ArgumentParser(description='Short sample app') parser.add_argument('-a', action="store_true", default=False) parser.add...