tzinfo object for the local timezone
Project description
tzlocal
This Python module returns a tzinfo object with the local timezone information under Unix and Win-32. It requires pytz, and returns pytz tzinfo objects.
This module attempts to fix a glaring hole in pytz, that there is no way to get the local timezone information, unless you know the zoneinfo name, and under several Linux distros that’s hard or impossible to figure out.
Also, with Windows different timezone system using pytz isn’t of much use unless you separately configure the zoneinfo timezone name.
With tzlocal you only need to call get_localzone() and you will get a tzinfo object with the local time zone info. On some Unices you will still not get to know what the timezone name is, but you don’t need that when you have the tzinfo file. However, if the timezone name is readily available it will be used.
Supported systems
These are the systems that are in theory supported:
Windows 2000 and later
Any unix-like system with a /etc/localtime or /usr/local/etc/localtime
If you have one of the above systems and it does not work, it’s a bug. Please report it.
Usage
Load the local timezone:
>>> from tzlocal import get_localzone >>> tz = get_localzone() >>> tz <DstTzInfo 'Europe/Warsaw' WMT+1:24:00 STD>
Create a local datetime:
>>> from datetime import datetime >>> dt = tz.localize(datetime(2015, 4, 10, 7, 22)) >>> dt datetime.datetime(2015, 4, 10, 7, 22, tzinfo=<DstTzInfo 'Europe/Warsaw' CEST+2:00:00 DST>)
Lookup another timezone with pytz:
>>> import pytz
>>> eastern = pytz.timezone('US/Eastern')
Convert the datetime:
>>> dt.astimezone(eastern) datetime.datetime(2015, 4, 10, 1, 22, tzinfo=<DstTzInfo 'US/Eastern' EDT-1 day, 20:00:00 DST>)
Maintainer
Lennart Regebro, regebro@gmail.com
Contributors
Marc Van Olmen
Benjamen Meyer
Manuel Ebert
Xiaokun Zhu
Cameris
Edward Betts
McK KIM
Cris Ewing
Ayala Shachar
Lev Maximov
Jakub Wilk
John Quarles
(Sorry if I forgot someone)
License
CC0 1.0 Universal http://creativecommons.org/publicdomain/zero/1.0/
Changes
1.4b1 (2017-04-14)
Dropping support for Python versions nobody uses (2.5, 3.1, 3.2), adding 3.6 Python 3.1 and 3.2 still works, 2.5 has been broken for some time.
Ayalash’s OS X fix didn’t work on Python 2.7, fixed that.
1.3.2 (2017-04-12)
Ensure closing of subprocess on OS X (ayalash)
Removed unused imports (jwilk)
Closes stdout and stderr to get rid of ResourceWarnings (johnwquarles)
Updated Windows timezones (axil)
1.3 (2016-10-15)
#34: Added support for /var/db/zoneinfo
1.2.2 (2016-03-02)
#30: Fixed a bug on OS X.
1.2.1 (2016-02-28)
Tests failed if TZ was set in the environment. (EdwardBetts)
Replaces os.popen() with subprocess.Popen() for OS X to handle when systemsetup doesn’t exist. (mckabi, cewing)
1.2 (2015-06-14)
Systemd stores no time zone name, forcing us to look at the name of the file that localtime symlinks to. (cameris)
1.1.2 (2014-10-18)
Timezones that has 3 items did not work on Mac OS X. (Marc Van Olmen)
Now doesn’t fail if the TZ environment variable isn’t an Olsen time zone.
Some timezones on Windows can apparently be empty (perhaps the are deleted). Now these are ignored. (Xiaokun Zhu)
1.1.1 (2014-01-29)
I forgot to add Etc/UTC as an alias for Etc/GMT.
1.1 (2014-01-28)
Adding better support for OS X.
Added support to map from tzdata/Olsen names to Windows names. (Thanks to Benjamen Meyer).
1.0 (2013-05-29)
Fixed some more cases where spaces needs replacing with underscores.
Better handling of misconfigured /etc/timezone.
Better error message on Windows if we can’t find a timezone at all.
0.3 (2012-09-13)
Windows 7 support.
Python 2.5 supported; because it only needed a __future__ import.
Python 3.3 tested, it worked.
Got rid of relative imports, because I don’t actually like them, so I don’t know why I used them in the first place.
For each Windows zone, use the default zoneinfo zone, not the last one.
0.2 (2012-09-12)
Python 3 support.
0.1 (2012-09-11)
Initial release.
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