argparse `MetavarTypeHelpFormatter` not available in ConfigArgParse - Githubissues

bw2 / ConfigArgParse

A drop-in replacement for argparse that allows options to also be set via config files and/or environment variables.

MIT License

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argparse `MetavarTypeHelpFormatter` not available in ConfigArgParse #276

Closed cruisen closed 1 year ago

cruisen commented 2 years ago

Missing Formater

MetavarTypeHelpFormatter is part of argparse

see: https://docs.python.org/3/library/argparse.html#formatter-class

Error

However MetavarTypeHelpFormatter is not available in ConfigArgParse
It actually fails on import: ImportError: cannot import name 'MetavarTypeHelpFormatter' from 'configargparse'

PR wanted?

I was able to patch https://github.com/bw2/ConfigArgParse/blob/master/configargparse.py

Note

As a side effect I found a bug on argparse itself. It fails if MetavarTypeHelpFormatter is used and an argument does not have an type argument: AttributeError: 'NoneType' object has no attribute '__name__'
I will raise an Issue, maybe a PR there as well.

cruisen commented 1 year ago

This was an issue on my misunderstanding. Hence a user error.

Fix is:

from argparse import MetavarTypeHelpFormatter

-> Closing the issue.