Issue 31097: itertools.islice not accepting np.int64
Created on 2017-08-01 13:23 by braaannigan, last changed 2022-04-11 14:58 by admin. This issue is now closed.
| Messages (6) | |||
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| msg299617 - (view) | Author: LB (braaannigan) | Date: 2017-08-01 13:23 | |
The error arises when this code is used: itertools.islice( [3, 4, 5], np.int64(2) ) but not with this itertools.islice([3,4,5], 2) |
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| msg299618 - (view) | Author: Raymond Hettinger (rhettinger) *  |
Date: 2017-08-01 14:14 | |
See http://bugs.python.org/issue30537 |
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| msg299620 - (view) | Author: LB (braaannigan) | Date: 2017-08-01 15:07 | |
Thanks Ray. The use case is here: https://stackoverflow.com/questions/45356718/saving-matplotlib-animation-leads-to-error/45438057#45438057 I'm going to suggest a workaround in matplotlib for the moment. Changing type in this use case shouldn't be a big issue, it only happens once for each animation created. |
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| msg299625 - (view) | Author: Mark Dickinson (mark.dickinson) * |
Date: 2017-08-01 17:55 | |
That actually looks as though it may be worth a bug report to the matplotlib folks. |
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| msg299628 - (view) | Author: LB (braaannigan) | Date: 2017-08-01 18:55 | |
Hi Mark - I've done that here: https://github.com/matplotlib/matplotlib/issues/8973 Liam |
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| msg299769 - (view) | Author: Terry J. Reedy (terry.reedy) * |
Date: 2017-08-05 03:07 | |
LB, an exception is a graceful shutdown, not a crash. A crash is a seg fault, core dump, or an OS message 'Your app has stopped unexpectedly'. In #30537, the exception was regarded as expected, not a bug, and changing islice to accept np ints was regarded as an enhancement, and therefore limited to 3.7 |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:58:49 | admin | set | github: 75280 |
| 2017-08-05 03:07:56 | terry.reedy | set | nosy:
+ terry.reedy messages: + msg299769 |
| 2017-08-05 03:02:31 | terry.reedy | set | status: open -> closed type: crash -> behavior superseder: Using PyNumber_AsSsize_t in itertools.islice resolution: duplicate stage: resolved |
| 2017-08-01 18:55:01 | braaannigan | set | messages: + msg299628 |
| 2017-08-01 17:55:57 | mark.dickinson | set | nosy:
+ mark.dickinson messages: + msg299625 |
| 2017-08-01 15:07:18 | braaannigan | set | messages: + msg299620 |
| 2017-08-01 14:14:53 | rhettinger | set | nosy:
+ rhettinger messages: + msg299618 |
| 2017-08-01 13:23:06 | braaannigan | create | |