Timezone Information Missing in pytz?
I'm having a very weird problem with Python's
pytz: it seems to have an incomplete catalog of timezones on my system (MacOS X 10.8.5, system Python 2.7.5).
>>> from pytz import timezone >>> import pytz >>> utc = pytz.utc >>> utc.zone 'UTC' >>> eastern = timezone('US/Eastern') Traceback (most recent call last): File "<stdin>", line 1, in <module> File "pytz/__init__.pyc", line 182, in timezone pytz.exceptions.UnknownTimeZoneError: 'US/Eastern'
So the timezone
'US/Eastern' can't be found.
Accordingly I tried to have a look at the catalog of timezones that
>>> from pytz import all_timezones >>> for tz in pytz.all_timezones: ... print tz ... Africa/Abidjan Africa/Accra Africa/Addis_Ababa Africa/Algiers Africa/Asmara Africa/Asmera Africa/Bamako Africa/Bangui Africa/Banjul Africa/Bissau Africa/Blantyre Africa/Brazzaville Africa/Bujumbura Africa/Cairo Africa/Casablanca Africa/Ceuta Africa/Conakry Africa/Dakar Africa/Dar_es_Salaam Africa/Djibouti Africa/Douala Africa/El_Aaiun Africa/Freetown Africa/Gaborone Africa/Harare Africa/Johannesburg Africa/Juba Africa/Kampala Africa/Khartoum Africa/Kigali Africa/Kinshasa Africa/Lagos Africa/Libreville Africa/Lome Africa/Luanda Africa/Lubumbashi Africa/Lusaka Africa/Malabo Africa/Maputo Africa/Maseru Africa/Mbabane Africa/Mogadishu Africa/Monrovia Africa/Nairobi Africa/Ndjamena Africa/Niamey Africa/Nouakchott Africa/Ouagadougou Africa/Porto-Novo Africa/Sao_Tome Africa/Timbuktu Africa/Tripoli Africa/Tunis Africa/Windhoek America/Adak America/Anchorage America/Anguilla America/Antigua America/Araguaina America/Argentina/Buenos_Aires America/Argentina/Catamarca America/Argentina/ComodRivadavia America/Argentina/Cordoba America/Argentina/Jujuy America/Argentina/La_Rioja America/Argentina/Mendoza America/Argentina/Rio_Gallegos America/Argentina/Salta America/Argentina/San_Juan America/Argentina/San_Luis America/Argentina/Tucuman America/Argentina/Ushuaia America/Aruba America/Asuncion America/Atikokan America/Atka America/Bahia America/Bahia_Banderas America/Barbados America/Belem America/Belize America/Blanc-Sablon America/Boa_Vista America/Bogota America/Boise America/Buenos_Aires America/Cambridge_Bay America/Campo_Grande America/Cancun America/Caracas America/Catamarca America/Cayenne America/Cayman America/Chicago America/Chihuahua America/Coral_Harbour America/Cordoba America/Costa_Rica America/Creston America/Cuiaba America/Curacao America/Danmarkshavn America/Dawson America/Dawson_Creek America/Denver America/Detroit America/Dominica America/Edmonton America/Eirunepe America/El_Salvador America/Ensenada America/Fort_Wayne America/Fortaleza America/Glace_Bay America/Godthab America/Goose_Bay America/Grand_Turk America/Grenada America/Guadeloupe America/Guatemala America/Guayaquil America/Guyana America/Halifax America/Havana America/Hermosillo America/Indiana/Indianapolis America/Indiana/Knox America/Indiana/Marengo America/Indiana/Petersburg America/Indiana/Tell_City America/Indiana/Vevay America/Indiana/Vincennes America/Indiana/Winamac America/Indianapolis America/Inuvik America/Iqaluit America/Jamaica America/Jujuy America/Juneau America/Kentucky/Louisville America/Kentucky/Monticello America/Knox_IN America/Kralendijk America/La_Paz America/Lima America/Los_Angeles
So as you can see, it ends rather prematurely and many many timezones are missing.
I tried to overcome this by updating the Olson database
pytz uses internally:
$ sudo pip install -U pytz
But the problem persists...
Any ideas what might be going wrong here? Am I missing something?
I cannot say why your installation of pytz is broken, but here's a possible fix:
- Download the .zip archive of pytz from the Python Package Index.
- In Terminal.app, run
pip show pytz.
- Using the path it returns, run
open /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python(replacing my path with yours if different). This will launch a Finder window with your Python modules.
- Find the pytz/ folder. Open it.
- Replace the zoneinfo/ folder with the zoneinfo/ folder that's in the .zip archive you downloaded in step 1 from PyPI.
python - Timezone Information Missing in pytz?, I cannot say why your installation of pytz is broken, but here's a possible fix: Download the .zip archive of pytz from the Python Package Index. In Terminal.app Internally, this is a class that uses time.timezone and time.altzone (switching based on time.daylight), but creates a suitable timezone object from that. You use this instead of a pytz timezone. The alternative is to read the currently configured timezone from the operating system instead, but this differs widely from OS to OS.
I had a similar exception
UnknownTimeZoneError: Can not find any timezone configuration when i tried to run my app inside a docker container with the latest ubuntu images. It turned out that
tzdata was missing. Installing
tzdata package fixed it:
apt-get install -y tzdata # Maybe you will need to reconfigure the timezone as well: ln -fs /usr/share/zoneinfo/Etc/UTC /etc/localtime dpkg-reconfigure -f noninteractive tzdata
sudo if you have to)
pytz · PyPI, The first is to use the localize() method provided by the pytz library. This is used to localize a naive datetime (datetime with no timezone information): >>> loc_dt The first is to use the localize() method provided by the pytz library. This is used to localize a naive datetime (datetime with no timezone information): >>> loc_dt = eastern.localize(datetime(2002, 10, 27, 6, 0, 0)) >>> print(loc_dt.strftime(fmt)) 2002-10-27 06:00:00 EST-0500
In this data, certain identifiers (such as
US/Eastern) are simply pointers (aka "links" or "aliases") to the real time zone. Links are there for several different reasons, usually for backwards compatibility purposes. In this case, the
US/Eastern time zone is a link to
America/New_York, which is the true time zone that you should be using. (I believe this particular switch happened in 1993).
You can see other time zones that are just there for backwards compatibility here. See also this chart on Wikipedia which lists the time zones, and clearly indicates which zones are links and where those links point to.
As to why pytz isn't accepting backward compatible zones on your system, I'm not exactly certain. It certainly should, and even shows these in their documentation. You might try re-installing it as Jacob suggested. But even then, you should prefer
America/New_York instead of
No timezone configuration in running image · Issue #610 , When I run a python command that needs timezone information I get an error pointing to a missing timezone configuration. in _get_localzone(_root) 115 return pytz.tzfile.build_tzinfo('local', tzfile) 116 --> 117 raise pytz. pytz. Brings the IANA tz database into Python. This library allows accurate and cross platform timezone calculations. pytz contains generated code, and this branch generates it. The actual pytz code and documentation can be found in the src/ directory. Usage Information / Documentation. See the pytz README. pytz for Enterprise
Tried reinstall, but bug not gone.
Then, I open
pytz/__init__.py, add a line
zone = 'UTC', problem is gone:
zone = _unmunge_zone(zone) zone = 'UTC' if zone not in _tzinfo_cache: if zone in all_timezones_set: fp = open_resource(zone) try: _tzinfo_cache[zone] = build_tzinfo(zone, fp) finally: fp.close() else: raise UnknownTimeZoneError(zone)
This is quick and simple solution, but you'd better find the real problem( version? system? ) if you have time.
pytz, pytz brings the Olson timezone database into Python. This library #1720794 Test for sortedness of all_timezones and common_timezones is missing. pytz 6. The following are code examples for showing how to use pytz.country_timezones().They are from open source Python projects. You can vote up the examples you like or vote down the ones you don't like.
All solutions didn't work for me in a Spark cluster. But I found the "pendulum" library and it works just fine.
import pendulum timezone = pendulum.timezone('Europe/Saratov')
Bug #572530 “pytz missing some timezone names that are present i , For example, pytz doesn't know how to look up 'BRT': >>> pytz.timezone('BRT') Traceback (most recent call last): File " ", line 1, in File If you think a timezone definition is incorrect, I probably can’t fix it. pytz is a direct translation of the Olson timezone database, and changes to the timezone definitions need to be made to this source. If you find errors they should be reported to the time zone mailing list, linked from http://www.iana.org/time-zones.
7.1. datetime — Basic date and time types, An abstract base class for time zone information objects. object timedelta tzinfo timezone time date datetime For a complete and up-to-date set of DST rules # and timezone definitions, visit the Olson Database (or try pytz): method must consider times in the “missing hour” (2:MM for Eastern) to be in daylight time. If you think a timezone definition is incorrect, I probably can’t fix it. pytz is a direct translation of the Olson timezone database, and changes to the timezone definitions need to be made to this source. If you find errors they should be reported to the time zone mailing list, linked from http://www.iana.org/time-zones.
PEP 615 -- Support for the IANA Time Zone Database in the , System time zone information; The tzdata Python package Using a pytz-like interface; Windows support via Microsoft's ICU API; Alternative Although this information is missing in the compiled TZif binaries, it is present in Always use aware datetime object, i.e. with timezone information. That makes sure you can compare them directly (aware and unaware datetime objects are not comparable) and will return them correctly to users. Leverage pytz to have timezone objects. Use ISO 8601 as input and output string format.
pandas.Series.dt.tz_convert, tz : string, pytz.timezone, dateutil.tz.tzfile or None. Time zone for time. A tz of None will convert to UTC and remove the timezone information. Returns:. When support for time zones is enabled, Django stores datetime information in UTC in the database, uses time-zone-aware datetime objects internally, and translates them to the end user’s time zone in templates and forms. This is handy if your users live in more than one time zone and you want to display datetime information according to each