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Created on 2009-04-24 12:26 by mark.dickinson, last changed 2022-04-11 14:56 by admin. This issue is now closed.
| Files | ||||
|---|---|---|---|---|
| File name | Uploaded | Description | Edit | |
| issue5829.patch | mark.dickinson, 2009-05-16 08:24 | |||
| Messages (6) | |||
|---|---|---|---|
| msg86402 - (view) | Author: Mark Dickinson (mark.dickinson) *  |
Date: 2009-04-24 12:26 | |
In (for example) Python 2.6:
>>> float('1e500')
inf
>>> complex('1e500')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: float() out of range: 1e500
I'd say that one of these is a bug, but I'm not sure which one.
Ideally, float('1e500') would raise OverflowError (not ValueError). But
it's quite likely that there are people who depend on the current
behaviour, and the current behaviour also agrees with what happens for
float literals:
>>> 1e500
inf
For 2.7 and 3.1, I propose fixing the complex constructor so that
complex('1e500') produces (inf+0j). For 2.6 and 3.0, I propose leaving
the current behaviour as it is.
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| msg86403 - (view) | Author: Mark Dickinson (mark.dickinson) * |
Date: 2009-04-24 12:28 | |
Note: complex('1e-500') also produces ValueError in 2.6. That's
definitely a bug.
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| msg86505 - (view) | Author: Mark Dickinson (mark.dickinson) * |
Date: 2009-04-25 13:29 | |
complex('1e-500') bug fixed in r71891 (2.6) and r71892 (3.0).
It's already gone in trunk and py3k.
What's left is deciding whether the OverflowError that 2.7 and 3.1
currently produce should disappear in favour of producing infinities
instead.
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| msg87861 - (view) | Author: Mark Dickinson (mark.dickinson) * |
Date: 2009-05-16 08:24 | |
Patch against py3k. If someone can review this I'll apply it for 3.1; otherwise, it can wait until 3.2. |
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| msg88002 - (view) | Author: Eric V. Smith (eric.smith) * |
Date: 2009-05-17 20:55 | |
It looks good to me. |
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| msg88132 - (view) | Author: Mark Dickinson (mark.dickinson) * |
Date: 2009-05-20 18:45 | |
Thanks, Eric. Committed in r72803; backported to trunk in r72805. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:56:48 | admin | set | github: 50079 |
| 2009-05-20 18:45:10 | mark.dickinson | set | status: open -> closed resolution: fixed messages: + msg88132 |
| 2009-05-17 20:55:41 | eric.smith | set | nosy:
+ eric.smith messages: + msg88002 |
| 2009-05-16 08:25:27 | mark.dickinson | set | components: + Interpreter Core |
| 2009-05-16 08:24:51 | mark.dickinson | set | files:
+ issue5829.patch priority: normal versions: - Python 2.6, Python 3.0 messages: + msg87861 keywords: + patch stage: test needed -> commit review |
| 2009-05-01 15:24:15 | mark.dickinson | set | assignee: mark.dickinson |
| 2009-04-25 13:29:29 | mark.dickinson | set | messages: + msg86505 |
| 2009-04-24 12:28:06 | mark.dickinson | set | messages: + msg86403 |
| 2009-04-24 12:26:47 | mark.dickinson | set | keywords: + easy |
| 2009-04-24 12:26:20 | mark.dickinson | create | |