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Created on 2010-01-18 08:34 by Umit.Oztosun, last changed 2022-04-11 14:56 by admin. This issue is now closed.
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| msg97991 - (view) | Author: Umit Oztosun (Umit.Oztosun) | Date: 2010-01-18 08:34 | |
On MacOSX (10.5) Intel, Python 2.6.4
>>> from decimal import Decimal
>>> min(Decimal('3.0'), 10.2)
10.199999999999999
On Win32, Python 2.6.4
>>> from decimal import Decimal
>>> min(Decimal('3.0'), 10.2)
Decimal('3.0')
On Linux 32 bit, Python 2.6.4
>>> from decimal import Decimal
>>> min(Decimal('3.0'), 10.2)
10.199999999999999
However, the correct result of Win32 version seems completely coincidental, it produces invalid results for other values:
>>> min(Decimal('12.0'), 10.2)
Decimal('12.0')
We are already aware of problems related to float and Decimal comparison, but in this case it complicates matters worse: On Windows code seems to work OK, on other platforms its results are wrong; worse than this, Windows version works totally by coincidence in fact.
It should at least warn user or raise an error IMHO.
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| msg97992 - (view) | Author: Ezio Melotti (ezio.melotti) *  |
Date: 2010-01-18 08:41 | |
Closing as duplicate of #2531. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:56:56 | admin | set | github: 51978 |
| 2010-01-18 09:20:10 | flox | set | superseder: float compared to decimal is silently incorrect. |
| 2010-01-18 08:41:58 | ezio.melotti | set | status: open -> closed priority: normal nosy: + mark.dickinson, ezio.melotti messages: + msg97992 resolution: duplicate stage: resolved |
| 2010-01-18 08:34:37 | Umit.Oztosun | create | |