[issue32867] argparse assertion failure with multiline metavars

[Martin Panter]

Martin Panter <vadmium+py at gmail.com> added the comment:

This looks like the same assertion failure as described in Issue 16360. Paul pointed to a patch in Issue 11874, so that may also be relevant.

However I agree that embedding newlines in a metavar doesn’t make much sense. What’s the use case?

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nosy: +martin.panter

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<https://bugs.python.org/issue32867>
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