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Created on 2020-07-12 23:56 by Neil Godber, last changed 2022-04-11 14:59 by admin. This issue is now closed.
| Messages (4) | |||
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| msg373578 - (view) | Author: Neil Godber (Neil Godber) | Date: 2020-07-12 23:56 | |
'%' character in help= for argparse causes ValueError: incomplete format. I am attempting to use the percentage character in my help string but get the above error. Presumably argparse assumes % denotes formatting when this is not the case. I have tried f-strings, escape and raw strings, none of which rectify the issue. The only solution is that dev's cannot use % character in argpase help strings which is something of an oddity. |
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| msg373579 - (view) | Author: Eric V. Smith (eric.smith) *  |
Date: 2020-07-13 00:17 | |
Did you try doubling the % char? help='%%-age of the value' |
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| msg373584 - (view) | Author: Neil Godber (Neil Godber) | Date: 2020-07-13 04:24 | |
Hi, yes I did just then and indeed this worked. Wasn't aware of this. Further, curiously I am no longer able recreate this issue so I will close this for now. Sorry for the bother. |
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| msg373588 - (view) | Author: Eric V. Smith (eric.smith) * |
Date: 2020-07-13 09:07 | |
It's using normal %-formatting, so the rules applied are in https://docs.python.org/3/library/stdtypes.html#printf-style-string-formatting The last line of the last table in that section mentions literal % characters. I realize it's sort of hard to dig this up if you're just interested in argparse. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:33 | admin | set | github: 85461 |
| 2020-07-13 09:07:40 | eric.smith | set | resolution: not a bug messages: + msg373588 |
| 2020-07-13 04:24:57 | Neil Godber | set | status: open -> closed messages: + msg373584 stage: resolved |
| 2020-07-13 02:26:37 | xtreak | set | nosy:
+ rhettinger, paul.j3 |
| 2020-07-13 00:17:43 | eric.smith | set | nosy:
+ eric.smith messages: + msg373579 |
| 2020-07-12 23:56:17 | Neil Godber | create | |