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Metadata-Version: 2.1
Name: django-timezone-field
Version: 7.1
Summary: A Django app providing DB, form, and REST framework fields for zoneinfo and pytz timezone objects.
Home-page: https://github.com/mfogel/django-timezone-field/
License: BSD-2-Clause
Author: Mike Fogel
Author-email: mike@fogel.ca
Requires-Python: >=3.8,<4.0
Classifier: Development Status :: 4 - Beta
Classifier: Environment :: Web Environment
Classifier: Framework :: Django
Classifier: Framework :: Django :: 4.2
Classifier: Framework :: Django :: 5.0
Classifier: Framework :: Django :: 5.1
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: BSD License
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: 3.11
Classifier: Programming Language :: Python :: 3.12
Classifier: Programming Language :: Python :: 3.13
Classifier: Topic :: Utilities
Requires-Dist: Django (>=3.2,<6.0)
Requires-Dist: backports.zoneinfo (>=0.2.1,<0.3.0) ; python_version < "3.9"
Project-URL: Repository, https://github.com/mfogel/django-timezone-field/
Description-Content-Type: text/markdown
# django-timezone-field
[![CI](https://github.com/mfogel/django-timezone-field/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/mfogel/django-timezone-field/actions)
[![codecov](https://codecov.io/gh/mfogel/django-timezone-field/branch/main/graph/badge.svg?token=Rwekzmim3l)](https://codecov.io/gh/mfogel/django-timezone-field)
[![pypi downloads](https://img.shields.io/pypi/dm/django-timezone-field.svg)](https://pypi.python.org/pypi/django-timezone-field/)
[![pypi python support](https://img.shields.io/pypi/pyversions/django-timezone-field.svg)](https://pypi.python.org/pypi/django-timezone-field/)
[![pypi django support](https://img.shields.io/pypi/djversions/django-timezone-field.svg)](https://pypi.python.org/pypi/django-timezone-field/)
A Django app providing DB, form, and REST framework fields for
[`zoneinfo`](https://docs.python.org/3/library/zoneinfo.html) and [`pytz`](http://pypi.python.org/pypi/pytz/) timezone
objects.
## The transition from `pytz` to `zoneinfo`
Like Django, this app supports both `pytz` and `zoneinfo` objects while the community transitions away from `pytz` to
`zoneinfo`. All exposed fields and functions that return a timezone object accept an optional boolean kwarg `use_pytz`.
If not explicitly specified, the default value used for `use_pytz` matches Django's behavior:
- Django <= 3.X: `use_pytz` defaults to `True`
- Django == 4.X: `use_pytz` defaults to the value of
[`django.conf.settings.USE_DEPRECATED_PYTZ`](https://docs.djangoproject.com/en/4.0/ref/settings/#use-deprecated-pytz),
which itself defaults to `False`
- Django >= 5.X:
[drops support for `pytz` altogether](https://docs.djangoproject.com/en/5.0/releases/5.0/#features-removed-in-5-0),
and this app has done the same.
Note that this app does _not_ declare `pytz` to be a dependency, so if you're using this app with `use_pytz=True`, you'll need
to ensure `pytz` is included in the environment yourself.
### Differences in recognized timezones between `pytz` and `zoneinfo`
`pytz` and `zoneinfo` search for timezone data differently.
- `pytz` bundles and searches within its own copy of the [IANA timezone DB](https://www.iana.org/time-zones)
- `zoneinfo` first searches the local system's timezone DB for a match. If no match is found, it then searches within
the [`tzdata`](https://pypi.org/project/tzdata/) package _if it is installed_. The `tzdata` package contains a copy of
the IANA timezone DB.
If the local system's timezone DB doesn't cover the entire IANA timezone DB and the `tzdata` package is not installed,
you may run across errors like `ZoneInfoNotFoundError: 'No time zone found with key Pacific/Kanton'` for seemingly valid
timezones when transitioning from `pytz` to `zoneinfo`. The easy fix is to add `tzdata` to your project with
`poetry add tzdata` or `pip install tzdata`.
Assuming you have the `tzdata` package installed if needed, no
[data migration](https://docs.djangoproject.com/en/4.0/topics/migrations/#data-migrations) should be necessary when
switching from `pytz` to `zoneinfo`.
## Examples
### Database Field
```python
import zoneinfo
import pytz
from django.db import models
from timezone_field import TimeZoneField
class MyModel(models.Model):
tz1 = TimeZoneField(default="Asia/Dubai") # defaults supported, in ModelForm renders like "Asia/Dubai"
tz2 = TimeZoneField(choices_display="WITH_GMT_OFFSET") # in ModelForm renders like "GMT+04:00 Asia/Dubai"
tz3 = TimeZoneField(use_pytz=True) # returns pytz timezone objects
tz4 = TimeZoneField(use_pytz=False) # returns zoneinfo objects
my_model = MyModel(
tz2="America/Vancouver", # assignment of a string
tz3=pytz.timezone("America/Vancouver"), # assignment of a pytz timezone
tz4=zoneinfo.ZoneInfo("America/Vancouver"), # assignment of a zoneinfo
)
my_model.full_clean() # validates against pytz.common_timezones by default
my_model.save() # values stored in DB as strings
my_model.tz3 # value returned as pytz timezone: <DstTzInfo 'America/Vancouver' LMT-1 day, 15:48:00 STD>
my_model.tz4 # value returned as zoneinfo: zoneinfo.ZoneInfo(key='America/Vancouver')
my_model.tz1 = "UTC" # assignment of a string, immediately converted to timezone object
my_model.tz1 # zoneinfo.ZoneInfo(key='UTC') or pytz.utc, depending on use_pytz default
my_model.tz2 = "Invalid/Not_A_Zone" # immediately raises ValidationError
```
### Form Field
```python
from django import forms
from timezone_field import TimeZoneFormField
class MyForm(forms.Form):
tz1 = TimeZoneFormField() # renders like "Asia/Dubai"
tz2 = TimeZoneFormField(choices_display="WITH_GMT_OFFSET") # renders like "GMT+04:00 Asia/Dubai"
tz3 = TimeZoneFormField(use_pytz=True) # returns pytz timezone objects
tz4 = TimeZoneFormField(use_pytz=False) # returns zoneinfo objects
my_form = MyForm({"tz3": "Europe/Berlin", "tz4": "Europe/Berlin"})
my_form.full_clean() # validates against pytz.common_timezones by default
my_form.cleaned_data["tz3"] # value returned as pytz timezone: <DstTzInfo 'Europe/Berlin' LMT+0:53:00 STD>
my_form.cleaned_data["tz4"] # value returned as zoneinfo: zoneinfo.ZoneInfo(key='Europe/Berlin')
```
### REST Framework Serializer Field
```python
from rest_framework import serializers
from timezone_field.rest_framework import TimeZoneSerializerField
class MySerializer(serializers.Serializer):
tz1 = TimeZoneSerializerField(use_pytz=True)
tz2 = TimeZoneSerializerField(use_pytz=False)
my_serializer = MySerializer(data={
"tz1": "America/Argentina/Buenos_Aires",
"tz2": "America/Argentina/Buenos_Aires",
})
my_serializer.is_valid()
my_serializer.validated_data["tz1"] # <DstTzInfo 'America/Argentina/Buenos_Aires' LMT-1 day, 20:06:00 STD>
my_serializer.validated_data["tz2"] # zoneinfo.ZoneInfo(key='America/Argentina/Buenos_Aires')
```
## Installation
Releases are hosted on [`pypi`](https://pypi.org/project/django-timezone-field/) and can be installed using various
python packaging tools.
```bash
# with poetry
poetry add django-timezone-field
# with pip
pip install django-timezone-field
```
## Running the tests
From the repository root, with [`poetry`](https://python-poetry.org/):
```bash
poetry install
poetry run pytest
```
## Changelog
#### 7.1 (2025-01-11)
- Add support for python 3.13
#### 7.0 (2024-07-07)
- Better default sorting of `choices` ([#116](https://github.com/mfogel/django-timezone-field/issues/116)), ([#123](https://github.com/mfogel/django-timezone-field/issues/123))
- Convert string value to timezone object immediately on creation/assignment.
Accessing a TimeZoneField will _always_ return a timezone or None (never a string).
(Potentially BREAKING: Unknown timezone names now raise `ValidationError` at time of assignment.
Previously, conversion was delayed until model `full_clean` or `save`.)
([#57](https://github.com/mfogel/django-timezone-field/issues/57))
- Add support for django 5.1
- Drop support for django 3.2, 4.0, 4.1
- Change base class of `TimeZoneSerializerField` from DJRF's `Field` to `CharField` ([#137](https://github.com/mfogel/django-timezone-field/issues/137))
#### 6.1.0 (2023-11-25)
- Add support for django 5.0
- Add support for python 3.12
- Fix issue with `Factory` timezone on some BSD systems ([#114](https://github.com/mfogel/django-timezone-field/issues/114))
#### 6.0.1 (2023-09-07)
- Use correct default backend when running with django 3.X ([#109](https://github.com/mfogel/django-timezone-field/issues/109))
#### 6.0 (2023-08-20)
- BREAKING: `pytz` removed from dependencies. If you use this package with `use_pytz=True`, you'll need to install
`pytz` yourself.
- Drop support for django 2.2
- Drop support for python 3.7
#### 5.1 (2023-06-18)
- Add django as a dependency of this package, with correct version constraints
([#90](https://github.com/mfogel/django-timezone-field/issues/90))
- Add support for django 4.1, 4.2
- Add support for python 3.11
#### 5.0 (2022-02-08)
- Add support for `zoneinfo` objects ([#79](https://github.com/mfogel/django-timezone-field/issues/79))
- Add support for django 4.0
- Remove `timezone_field.utils.add_gmt_offset_to_choices`, `display_GMT_offset` kwarg (use `choices_display` instead)
- Drop support for django 3.0, 3.1
- Drop support for python 3.5, 3.6
#### 4.2.3 (2022-01-13)
- Fix sdist installs ([#78](https://github.com/mfogel/django-timezone-field/issues/78))
- Officially support python 3.10
#### 4.2.1 (2021-07-07)
- Reinstate `TimeZoneField.default_choices` ([#76](https://github.com/mfogel/django-timezone-field/issues/76))
#### 4.2 (2021-07-07)
- Officially support django 3.2, python 3.9
- Fix bug with field deconstruction ([#74](https://github.com/mfogel/django-timezone-field/issues/74))
- Housekeeping: use poetry, github actions, pytest
#### 4.1.2 (2021-03-17)
- Avoid `NonExistentTimeError` during DST transition ([#70](https://github.com/mfogel/django-timezone-field/issues/70))
#### 4.1.1 (2020-11-28)
- Don't import `rest_framework` from package root ([#67](https://github.com/mfogel/django-timezone-field/issues/67))
#### 4.1 (2020-11-28)
- Add Django REST Framework serializer field
- Add new `choices_display` kwarg with supported values `WITH_GMT_OFFSET` and `STANDARD`
- Deprecate `display_GMT_offset` kwarg
#### 4.0 (2019-12-03)
- Add support for django 3.0, python 3.8
- Drop support for django 1.11, 2.0, 2.1, python 2.7, 3.4
#### 3.1 (2019-10-02)
- Officially support django 2.2 (already worked)
- Add option to display TZ offsets in form field ([#46](https://github.com/mfogel/django-timezone-field/issues/46))
#### 3.0 (2018-09-15)
- Support django 1.11, 2.0, 2.1
- Add support for python 3.7
- Change default human-readable timezone names to exclude underscores
([#32](https://github.com/mfogel/django-timezone-field/issues/32) &
[#37](https://github.com/mfogel/django-timezone-field/issues/37))
#### 2.1 (2018-03-01)
- Add support for django 1.10, 1.11
- Add support for python 3.6
- Add wheel support
- Support bytes in DB fields ([#38](https://github.com/mfogel/django-timezone-field/issues/38) &
[#39](https://github.com/mfogel/django-timezone-field/issues/39))
#### 2.0 (2016-01-31)
- Drop support for django 1.7, add support for django 1.9
- Drop support for python 3.2, 3.3, add support for python 3.5
- Remove tests from source distribution
#### 1.3 (2015-10-12)
- Drop support for django 1.6, add support for django 1.8
- Various [bug fixes](https://github.com/mfogel/django-timezone-field/issues?q=milestone%3A1.3)
#### 1.2 (2015-02-05)
- For form field, changed default list of accepted timezones from `pytz.all_timezones` to `pytz.common_timezones`, to
match DB field behavior.
#### 1.1 (2014-10-05)
- Django 1.7 compatibility
- Added support for formatting `choices` kwarg as `[[<str>, <str>], ...]`, in addition to previous format of
`[[<pytz.timezone>, <str>], ...]`.
- Changed default list of accepted timezones from `pytz.all_timezones` to `pytz.common_timezones`. If you have timezones
in your DB that are in `pytz.all_timezones` but not in `pytz.common_timezones`, this is a backward-incompatible
change. Old behavior can be restored by specifying `choices=[(tz, tz) for tz in pytz.all_timezones]` in your model
definition.
#### 1.0 (2013-08-04)
- Initial release as `timezone_field`.
## Credits
Originally adapted from [Brian Rosner's django-timezones](https://github.com/brosner/django-timezones).
Made possible thanks to the work of the
[contributors](https://github.com/mfogel/django-timezone-field/graphs/contributors).