Python getopt module is very similar in working as the Cgetopt()function for parsing command-line parameters. Python getopt module is useful in parsing command line arguments where we want user to enter some options too. Let’s look at a simple example to understand this. import getopt import...
importargparsedefmain():# Create the parserparser=argparse.ArgumentParser(description="Sample script to demonstrate command-line arguments.")# Add argumentsparser.add_argument("arg1",help="The first argument")parser.add_argument("arg2",help="The second argument")# Parse the argumentsargs=parser.par...
User enters command line arguments Program reads the arguments Arguments passed to main function Execution Main function processes the arguments Python main function parameter passing 四、序列图示例 为进一步理解函数调用和参数传递的顺序,我们可以使用序列图: MainFunctionProgramUserMainFunctionProgramUserRun scrip...
print'输出的文件为:',outputfile if__name__=="__main__": main(sys.argv[1:]) 执行以上代码,输出结果为: $ python test.py-h usage:test.py-i<inputfile>-o<outputfile>$ python test.py-i inputfile-o outputfile输入的文件为:inputfile输出的文件为:outputfile...
optional arguments:-h, --help show this help message and exit C:\PycharmProjects\p3\src\pyproject1>python argTest.py report1.htmlarg test report1.html 4. 再添加一个可选择的参数,没有配置可选参数时,读取该参数,获取的是None #coding=utf-8import argparseif__name__ =="__main__": ...
# 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(...
"This module provides access to some objects used or maintained by the\ninterpreter and to functions that interact stronglywiththe interpreter.\n\nDynamic objects:\n\nargv--command line arguments;argv[0]is the script pathnameifknown\npath--module search path;path[0]is the script directory,else...
In this example, we have first stored the command line arguments in apython variable. After that, we have printed the values using the printfunction in Python. Conclusion In this article, we have discussed the working of sys.argv in Python. To know more aboutpython programming, you can read...
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...
functionname='拍照'#默认值partdate ='20191128'try: opts, args= getopt.getopt(argv,"hf:p:", ["help","functionname=","partdate="])#表示参数选项有:-h, -f, -p, --help, --functionname, --partdate,它们相互对应;该方法的返回值有两个元素: 第一个是(opt, value)元组的列表,第二个是一...