parser= argparse.ArgumentParser(description='Test command line arguments') parser.add_argument('width', type=int, help='Width of a rectangle') parser.add_argument('height', type=int, help='Height of a rectangle') args=parser.parse_args()print(f'Rectangle: width = {args.width}, height = ...
parse_args() # Output the collected arguments print(args.filenames) print(args.patterns) print(args.verbose) print(args.outfile) print(args.speed) Python Copy该程序定义了一个如下使用的命令行解析器:bash % python3 search.py -h usage: search.py [-h] [-p pattern] [-v] [-o OUTFILE] ...
Theargparsemodule makes it easy to write user-friendly command-line interfaces. It parses the defined arguments from thesys.argv. Theargparsemodule also automatically generates help and usage messages, and issues errors when users give the program invalid arguments. Theargparseis a standard module; ...
$ python parse_command_line_option.py --foo bar usage: parse_command_line_option.py [-h] [--foo] parse_command_line_option.py: error: unrecognized arguments: bar $ python parse_command_line_option.py --foo 42 如上,给--foo传参数会报错;foo的固定值变成了42 'store_true' and 'store_f...
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. ...
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) ...
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__, version='Example 1.0') ...
parse_args(argv) options,是一个对象(optpars.Values),保存有命令行参数值。通过命令行参数名,如 file,访问其对应的值: options.file ; args,是一个由positional arguments组成的列表; 例: test.py 代码语言:javascript 代码运行次数:0 运行 AI代码解释 import sys from optparse import OptionParser parser = ...
# import the necessary packages import argparse # construct the argument parse and parse the arguments ap = argparse.ArgumentParser() ap.add_argument("-n", "--name", required=True, help="name of the user") args = vars(ap.parse_args()) # display a friendly message to the user print(...
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...