This question already has answers here: Get selected subcommand with argparse (3 answers) Closed 8 years ago. I think this must be easy but I do not get it. Assume I have the following arparse parser: import argparse parser = argparse.ArgumentParser( version=’pyargparsetest 1.0′ ) subparsers = parser.add_subparsers(help=’commands’) # all all_parser = subparsers.add_parser(‘all’, help=’process all apps’) … Read more
The title pretty much summarizes what I’d like to have happen. Here is what I have, and while the program doesn’t blow up on a nonpositive integer, I want the user to be informed that a nonpositive integer is basically nonsense. import argparse parser = argparse.ArgumentParser() parser.add_argument(“-g”, “–games”, type=int, default=162, help=”The number of games to … Read more
I have created a script using argparse. The script needs to take a configuration file name as an option, and user can specify whether they need to proceed totally the script or only simulate it. The args to be passed: ./script -f config_file -s or ./script -f config_file. It’s ok for the -f config_file part, … Read more
I want to have some options in argparse module such as –pm-export however when I try to use it like args.pm-export I get the error that there is not attribute pm. How can I get around this issue? Is it possible to have – in command line options? 5 Answers 5
I have a Python module that uses the argparse library. How do I write tests for that section of the code base? 9 Answers 9
Given: import argparse pa = argparse.ArgumentParser() pa.add_argument(‘–foo’) pa.add_argument(‘–bar’) print pa.parse_args(‘–foo 1’.split()) how do I make at least one of “foo, bar” mandatory: –foo x, –bar y and –foo x –bar y are fine make at most one of “foo, bar” mandatory: –foo x or –bar y are fine, –foo x –bar y is not 2 … Read more
I would like to have a optional argument that will default to a value if only the flag is present with no value specified, but store a user-specified value instead of the default if the user specifies a value. Is there already an action available for this? An example: python script.py –example # args.example would … Read more
Optparse, the old version just ignores all unrecognised arguments and carries on. In most situations, this isn’t ideal and was changed in argparse. But there are a few situations where you want to ignore any unrecognised arguments and parse the ones you’ve specified. For example: parser = argparse.ArgumentParser() parser.add_argument(‘–foo’, dest=”foo”) parser.parse_args() $python myscript.py –foo 1 … Read more
Assume I have a program that uses argparse to process command line arguments/options. The following will print the ‘help’ message: ./myprogram -h or: ./myprogram –help But, if I run the script without any arguments whatsoever, it doesn’t do anything. What I want it to do is to display the usage message when it is called … Read more
I noticed that the Python 2.7 documentation includes yet another command-line parsing module. In addition to getopt and optparse we now have argparse. Why has yet another command-line parsing module been created? Why should I use it instead of optparse? Are there new features that I should know about? 5 Answers 5
