wok annotate python-pytz/description.txt @ rev 25443
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author | Pascal Bellard <pascal.bellard@slitaz.org> |
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date | Sat Sep 03 09:28:15 2022 +0000 (2022-09-03) |
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Hans-G?nter@25231 | 1 Pytz brings the Olson tz database into Python. |
Hans-G?nter@25231 | 2 This library allows accurate and cross platform timezone calculations using |
Hans-G?nter@25231 | 3 Python 2.4 or higher. |
Hans-G?nter@25231 | 4 It also solves the issue of ambiguous times at the end of daylight saving time, |
Hans-G?nter@25231 | 5 which you can read more about in the Python Library Reference (datetime.tzinfo). |
Hans-G?nter@25231 | 6 |
Hans-G?nter@25231 | 7 Almost all of the Olson timezones are supported. |
Hans-G?nter@25231 | 8 |
Hans-G?nter@25231 | 9 Note |
Hans-G?nter@25231 | 10 |
Hans-G?nter@25231 | 11 This library differs from the documented Python API for tzinfo implementations; |
Hans-G?nter@25231 | 12 if you want to create local wallclock times you need to use the localize() |
Hans-G?nter@25231 | 13 method documented in this document. |
Hans-G?nter@25231 | 14 In addition, if you perform date arithmetic on local times that cross DST |
Hans-G?nter@25231 | 15 boundaries, the result may be in an incorrect timezone (ie. subtract 1 minute |
Hans-G?nter@25231 | 16 from 2002-10-27 1:00 EST and you get 2002-10-27 0:59 EST instead of the |
Hans-G?nter@25231 | 17 correct 2002-10-27 1:59 EDT). |
Hans-G?nter@25231 | 18 A normalize() method is provided to correct this. |
Hans-G?nter@25231 | 19 Unfortunately these issues cannot be resolved without modifying the Python |
Hans-G?nter@25231 | 20 datetime implementation (see PEP-431). |