parser= argparse.ArgumentParser(description='Test command line arguments') parser.add_argument('-w','--width', type=int, default=30, metavar='', required=True, help='Width of a rectangle') parser.add_argument('-
Python argparse module Python argparse module is the preferred way to parse command line arguments. It provides a lot of option such as positional arguments, default value for arguments, help message, specifying data type of argument etc. At the very simplest form, we can use it like below. ...
parser.add_argument('-s','--save-file', help='Description', required=False) args = parser.parse_args() print(args.open_file) print(args.save_file) Docopt Docopt can be used to create command line interfaces. fromdocoptimportdocopt if__name__ =='__main__': arguments = docopt(__doc...
A parser is created withArgumentParserand a new parameter is added withadd_argument. Arguments can be optional, required, or positional. Optional argument The following example creates a simple argument parser. optional_arg.py #!/usr/bin/python import argparse # help flag provides flag help # st...
Video introduction to docopt: PyCon UK 2012: Create *beautiful* command-line interfaces with Python New in version 0.6.1: Fix issue #85 which caused improper handling of [options] shortcut if it was present several times. New in version 0.6.0: New argument options_first, disallows interspe...
Parsing command-line arguments We have a program here calledadd.pythat uses Python'sargparsemodule to parse two arguments,xandy: importargparseparser=argparse.ArgumentParser()parser.add_argument('x',type=float)parser.add_argument('y',type=float)args=parser.parse_args()print(args.x+args.y) ...
command-line interfaces Video introduction to docopt: PyCon UK 2012: Create *beautiful* command-line interfaces with PythonNew in version 0.6.1: Fix issue #85 which caused improper handling of [options] shortcut if it was present several times. New in version 0.6.0: New argument options_firs...
Argparse in Python is a built-in module used to parse command-line arguments. Here’s a simple example of how to use it: importargparse parser=argparse.ArgumentParser()parser.add_argument('--name')args=parser.parse_args()print(args.name)# Output:# Whatever value you passed in with --name...
The command-line argument parser is the most important part of any argparse CLI. All the arguments and options that you provide at the command line will pass through this parser, which will do the hard work for you. To create a command-line argument parser with argparse, you need to insta...
parser.add_argument("reportname", help="set the reportname by this argument") args=parser.parse_args()printargs.report 执行脚本: C:\PycharmProjects\p3\src\pyproject1>python argTest.py arg test usage: argTest.py [-h] reportname