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
parser= argparse.ArgumentParser(description='Test command line arguments') parser.add_argument('-w','--width', type=int, default=30, help='Width of a rectangle') parser.add_argument('-H','--height', type=int, help='Height of a rectangle') args=parser.parse_args()print(f'Rectangle: ...
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...
parser = argparse.ArgumentParser() parser.add_argument('-b', type=int, required=True, help="defines the base value") parser.add_argument('-e', type=int, default=2, help="defines the exponent value") args = parser.parse_args() val = 1 base = args.b exp = args.e for i in range...
Accepting optional command-line arguments This version of ouradd.pyprogram accepts an optional--expectedor-eargument: importargparseparser=argparse.ArgumentParser()parser.add_argument('x',type=float)parser.add_argument('y',type=float)parser.add_argument('--expected','-e',type=float)args=parser.pa...
在Python 编程中,我们经常需要处理运行参数(command line arguments),比如从命令行传递一些信息给我们的程序。Python 提供了非常方便的模块来帮助我们处理这些参数,其中argparse是最为常用的库之一。本文将探讨如何使用argparse来处理多行的运行参数,并附带示例代码。
optional arguments:-h, --help show this help message and exit 3. 使用argparse模块,添加参数, #coding=utf-8importargparseif__name__=="__main__":print"arg test"parser=argparse.ArgumentParser() parser.add_argument("reportname", help="set the reportname by this argument") ...
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...
args = parser.parse_args() print(args.test) 然后我们在命令行中运行这个文件 C:\Users\Tony>python t.py --test "I love China" I love China 我们来分析下这段代码,首先就是创建一个参数解析对象赋给parser,然后在parser对象中使用add_argument方法添加参数以及各种选项,其中--test就是参数,这个参数的名...
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...