argparse

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: My script defines one main parser and multiple subparsers. I want to apply the -p argument to some subparsers. So far the code looks like this: parser = argparse.ArgumentParser(prog="myProg") subparsers = parser.add_subparsers(title="actions") parser.add_argument("-v", "--verbose", action="store_true", dest="VERBOSE", help="run in verbose mode") parser_create = subparsers.add_parser ("create", help = "create the orbix environment") parser_create.add_argument ("-p", type = int, required = True, help = "set db parameter") # Update parser

I have a question regarding python's argparse: Is it possible to have a optional argument, which does not require positional arguments? Example: parser.add_argument('lat', help="latitude") parser.add_argument('lon', help="longitude") parser.add_argument('--method', help="calculation method (default: add)", default="add") parser.add_argument('--list-methods', help="list available methods", action="store_true") The normal command line would be test.py 47.249 -33.282 or test.py 47.249 -33.282 --method sub . But as soon as I call the script with test.py --list-methods to list all available methods

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: i would like to get extra args using argparse but without known what are they. for example, in maven we can add parameters in the form: -Dmaven.test.skip=true or -Dcmd=compiler:compile i would like to get the same thing in python using argparse , and get some kind of dict with all the args.. i know i can use: aparser.parse_known_args() but then i need to parse me extra args (remove the -D and split by = ). Was wondering if there is something out of the box? Thanks! 回答1: You can use parser.add_argument('-D', action='append', default=[]) which

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to add option of options in argparse . Currently I have: group = parser.add_mutually_exclusive_group() group.add_argument("--md", help="Create xyz file for each ionic step for" " visualization", action='store_true') group.add_argument("--force", help="See which atom has maximum force", action='store_true') group.add_argument("--opt", help="grep string from file", nargs=2, metavar=("str", "file")) parser.add_argument("--xsf", help="Create xsf file for md(default is xyz)" " visualization", action='store_true') parser.add_argument("

I am trying to implement the following: $ prog.py -h usage: prog.py [-h] [-s | -m] [[-y [year]] | [[-1 | -3] [month] [year]]] However, no matter how I played with add_argument_group and add_mutually_exclusive_group, #!/usr/bin/env python import argparse def main(opt): print(opt) if __name__ == '__main__': parser = argparse.ArgumentParser() bar = parser.add_mutually_exclusive_group() bar.add_argument('-s', action='store_true', default=True) bar.add_argument('-m', action='store_true', default=False) #bar = parser.add_argument_group() bar = parser.add_mutually_exclusive_group() bar.add_argument('

The problem I worked on some python projects lately and had lots of problems with pip not installing the latest versions of some requirements. I am on osx and and I used brew to install Python 2.7.6 . In the project I'm working on, we simply pip install -r requirements.txt . In the current case, I needed to install argparse==1.2.1 . This is the actual latest version shown on the pypi website Here's my output Downloading/unpacking argparse==1.2.1 (from -r requirements.txt (line 4)) Could not find a version that satisfies the requirement argparse==1.2.1 (from -r requirements.txt (line 4)) (from

I have been troubled with this small piece of activity to be completed. I did do some experiment, but was not able to achieve the result. Requirement: test2.py [-c/-v] -f Usage or Rules: -c (compare) takes 2 parameter. -v (verify) takes 1 parameter. Either of these two must be present, but not both . -f is a mandatory parameter (output file name). Output: I am able to get the desired output as shown below kp@kp:~/Study/scripts$ ./test.py -c P1 P2 -f p kp@kp:~/Study/scripts$ ./test.py -v P1 -f p kp@kp:~/Study/scripts$ ./test.py -v P1 usage: test.py <functional argument> <ouput target argument>