argparse是python用于解析命令行参数和选项的标准模块,用于代替已经过时的optparse模块。argparse模块的作用是用于解析命令行参数,程序只需定义好它要求的参数,然后argparse将负责如何从sys.argv中解析出这些参数。argparse模块还会自动生成帮助和使用信息并且当用户赋给程序非法的参数时产生错误信息。 python test.py -c -i...
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subcmd.main_parser=selfreturnsubcmd, argsdefget_subcommand(self, name):"""获取子命令"""foritinself.subcmd_classes:ifit.name ==name:returnit()classManagementTools(object):"""管理工具类入口"""@staticmethoddef_load_cmd_from_module():"""加载当前文件Command子类"""cmds=[] mod= sys.modules[_...
The argparse module in Python is a powerful tool for parsing command-line arguments and options. It provides a simple and consistent way to define and validate command-line options, making it easier to write user-friendly and robust command-line applications. ### Basic Usage. To use the argpa...
importargparseif__name__=="__main__":parser=argparse.ArgumentParser("test argparse module")parser.add_argument("mode",type=str,choices=["r","w","a"],help="running type")parser.add_argument("file_type",type=str,choices=["txt","csv","log"],help="file type")parser.add_argument("-...
$ python 1.py 4 Traceback (most recent call last): File "1.py", line 5, in <module> print args.square**2 TypeError: unsupported operand type(s) for ** or pow(): 'str' and 'int' 1. 2. 3. 4. 5. 必须将代码增加type=你需要的类型(像这里需要int类型): ...
Python argparse last modified September 24, 2024 In this article we show how to parse command line arguments in Python with argparse module. Python argparse Theargparsemodule makes it easy to write user-friendly command-line interfaces. It parses the defined arguments from thesys.argv....
➜ git:(master) ✗ python3 test_argv.py -h usage: test_argv.py [-h] [-n NUMBER] [-o {txt,csv,doc}] [-d {1,2,3,4,5,6,7,8,9}] foo test module of argparse positional arguments: foo optional arguments: -h, --help show this help message and exit ...
$ python3 prog.py4Traceback(most recent call last):File"prog.py", line5,in<module> print(args.square**2)TypeError: unsupported operandtype(s)for**orpow():'str'and'int' 这样直接进行操作会发生错误,因为模块默认将输入的参数识别为string类型,我们只有明确表明为int型才可以进行**操作。
有关 Python 命令行解析更细致的介绍,请参阅 argparse 教程。The argparse module makes it easy to write user-friendly command-line interfaces. The program defines what arguments it requires, and argparse will figure out how to parse those out of sys.argv. The argparse module also automatically ...