You can get access to the command line parameters using the sys module. len(sys.argv) contains the number of arguments. To print all of the arguments simply execute str(sys.argv) #!/usr/bin/python importsys print('Arguments:', len(sys.argv)) print('List:', str(sys.argv)) Example: ...
argTest.py: error: too few arguments C:\PycharmProjects\p3\src\pyproject1>python argTest.py -h arg test usage: argTest.py [-h] reportnamepositional arguments: reportname set the reportname by this argument optional arguments:-h, --help show this help message and exit C:\PycharmProjects...
/usr/bin/python3importsysprint('Number of arguments:',len(sys.argv),'arguments.')print('Argument List:',str(sys.argv)) 现在运行上面的脚本,这将产生以下结果 - F:\>python F:\worksp\python\command_line_arguments.py Number of arguments:1arguments.Argume...
F:\>python F:\worksp\python\command_line_arguments.py Number of arguments:1arguments. Argument List: ['F:\\worksp\\python\\command_line_arguments.py'] F:\>python F:\worksp\python\command_line_arguments.py arg1 arg2 arg3 arg4 Number of arguments:5arguments. Argument List: ['F:\\wor...
importsysprint("Hi, I am avidpython.")print("The sys.argv list is:",sys.argv)sys_argv_length=len(sys.argv)number_of_arguments=sys_argv_length-1print("Total command line arguments are:",number_of_arguments)first_argument=sys.argv[1]second_argument=sys.argv[2]third_argument=sys.argv[3...
# 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 = arguments.Args() print args.get(0) 1. 2. 3. Run python test.py 123 will print 123. 处理输入流 from clint import piped_in if __name__ == '__main__': in_data = piped_in() print in_data 1. 2. 3. 4. Run python test.py < 1.txt will print 1.txt content. ...
Python 提供了getopt模块来获取命令行参数。 $ python test.py arg1 arg2 arg3 Python 中也可以使用sys的sys.argv来获取命令行参数: sys.argv 是命令行参数列表。 len(sys.argv) 是命令行参数个数。 注:sys.argv[0] 表示脚本名。 实例 test.py 文件代码如下: ...
Thechoicesoption limits arguments to the given list. mytime.py #!/usr/bin/python import argparse import datetime import time # choices limits argument values to the # given list parser = argparse.ArgumentParser() parser.add_argument('--now', dest='format', choices=['std', 'iso', 'unix'...
And we would run this Python script with the following command: python main.py which will print out: The name of this script is main.py The command line arguments to this script are stored as a list of strings. We can access the first argument with an index of 0, which is the file...