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...
We can also make optional command-line arguments that don't accept a value.In this version of add.py we're accepting an optional --verbose argument:import argparse parser = argparse.ArgumentParser() parser.add_argument('x', type=float) parser.add_argument('y', type=float) parser.add_...
add_argument('-o', dest='outfile', action='store', help='output file') parser.add_argument('--speed', dest='speed', action='store', choices={'slow','fast'}, default='slow', help='search speed') args = parser.parse_args() # Output the collected arguments print(args.filenames)...
optional arguments: -h, --help show this help message and exit 儲存引數資料的 Namespace 物件 使用parse_args()從 parser 取得引數資料後,此函數會回傳Namespace物件,這只是一個單純把資料用屬性(attribute)儲存下來的超簡單類別。 ## 延續上方傳入三個引數的範例 ...
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") ...
datetime import datetime parser = argparse.ArgumentParser() # 必填参数...parser.add_argument("host", help="database host") print(args) 使用效果 python test.py localhost Namespace...不含)", default=None, type=valid_datetime) 参考 Argparse 教程 Specify format for input arguments argparse python...
to write user-friendly command-line interfaces. The program defines what arguments it requires, and argparse will figure out how to parse those out of sys.argv. The argparse module also automatically generates help and usage messages and issues errors when users give the program invalid arguments....
Commands, Arguments, Options, Parameters, and Subcommands Getting Started With CLIs in Python: sys.argv vs argparse Using sys.argv to Build a Minimal CLI Creating a CLI With argparse Creating Command-Line Interfaces With Python’s argparse Creating a Command-Line Argument Parser Adding Arguments ...