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Created on 2014-02-28 09:17 by bsder, last changed 2022-04-11 14:57 by admin.
| Pull Requests | |||
|---|---|---|---|
| URL | Status | Linked | Edit |
| PR 28047 | open | DonnaDia, 2021-08-29 18:43 | |
| Messages (4) | |||
|---|---|---|---|
| msg212416 - (view) | Author: Andrew P. Lentvorski, Jr. (bsder) | Date: 2014-02-28 09:17 | |
This code did something unexpected to me:
>>> a = bytearray('1234')
>>> a
bytearray(b'1234')
>>> struct.pack_into('xBxB', a, 0, 0x59, 0x5A)
>>> a
bytearray(b'\x00Y\x00Z')
The unexpected part was that the 'x' pad byte formatter actually *overwrote* the bytes to 0 rather than leaving them alone.
Not necessarily a bug, but the fact that the pad byte writes 0x00 rather than being untouched/ignored should be documented.
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| msg212433 - (view) | Author: R. David Murray (r.david.murray) *  |
Date: 2014-02-28 14:07 | |
Contrawise, I would have found it very surprising if it had not padded with null bytes, but yes, the docs could be explicit about it by saying that 'x' padding means inserting null bytes. |
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| msg400554 - (view) | Author: Diana (DonnaDia) * | Date: 2021-08-29 18:37 | |
I'm working on this |
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| msg403526 - (view) | Author: komugi (komugi) | Date: 2021-10-09 09:20 | |
The PR is stale. Can I work on it ? |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:57:59 | admin | set | github: 65002 |
| 2021-10-09 09:20:20 | komugi | set | nosy:
+ komugi messages: + msg403526 |
| 2021-08-29 18:43:09 | DonnaDia | set | keywords:
+ patch stage: patch review pull_requests: + pull_request26493 |
| 2021-08-29 18:37:37 | DonnaDia | set | nosy:
+ DonnaDia messages: + msg400554 |
| 2021-06-18 09:51:08 | iritkatriel | set | title: struct.pack_into writes 0x00 for pad bytes -> doc: clarify that struct.pack_into writes 0x00 for pad bytes nosy: + docs@python assignee: docs@python versions: + Python 3.11, - Python 2.7 components: + Documentation, - Interpreter Core keywords: + easy |
| 2014-02-28 14:07:44 | r.david.murray | set | nosy:
+ r.david.murray messages: + msg212433 |
| 2014-02-28 09:17:29 | bsder | create | |