#23919: Cleanups for when we drop Python 2 compatibility
--------------------------------------+------------------------------------
Reporter: Tim Graham | Owner: nobody
Type: Cleanup/optimization | Status: new
Component: Core (Other) | Version:
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Description changed by Aymeric Augustin:
Old description:
> This is a tracking ticket of things that we can remove when we drop
> Python 2 compatibility in Django 2.0. Please edit the description of the
> ticket as you come across new items.
>
> * `django.core.mail.message.make_msgid()` #23905
> * `django.dispatch.weakref_backports`
> * `django.http.cookie` workarounds
> * `django.utils.2to3_fixes`
> * `django.utils.decorators.ContextDecorator`
> * `django.utils.encoding`
> * `@python_2_unicode_compatible`
> * force/smart _unicode
> * either force/smart _text or force/smart _str
> * `django.utils.html_parser.use_workaround`
> * `django.utils.http` functions like `urlquote_plus` -- I think the
> versions of these functions on Python 3 don't have the unicode characters
> bug we are working around.
> * `django.utils.lru_cache`
> * `django.utils.six`
> * `from __future__ import unicode_literals`
> * `str()` stuff for environment variables, e.g.
> 0bfb53866199f366ed140d49938fd185e5898156
> * Inheriting from `object` in `django.core.servers.basehttp` (and perhaps
> other places) ala 4ee06ec3fc8e94d164afbd2f9c880c60c658a9ac
> * `git grep 'long int'` (mostly docs)
> * `django.utils._os [npath,upath]`
> * In tests: `contextlib.closing(self.urlopen` (`contextlib.closing` no
> longer needed)
> * Support for pysqlite (doesn't support Python 3)
> * Replace `super(ClassName, self)` with `super()`
> * Remove `# -*- coding: utf-8 -*-` source file encoding (that's the
> default on Python 3)
> * Evaluate replacement of custom `__del__` methods by
> [https://docs.python.org/3/library/weakref.html#weakref.finalize
> weakref.finalize]
> * Remove `__ne__` from objects already defining a `__eq__`
> * Remove note about PYTHONHASHSEED (see #26243)
> * Remove Field.creation_counter (replace by metaclass `__prepare__`
> returning `OrderedDict()`,
> https://docs.python.org/3/reference/datamodel.html#preparing-the-class-
> namespace)
> * `django.test.utils.reset_warning_registry()`
> * Replace `errno` checks by `IOError` subclasses defined by
> [https://www.python.org/dev/peps/pep-3151/ PEP 3151]
> * `django.utils.glob`
> * `django.utils.cookies.SimpleCookie`
> * `django.test.mock`
> * Replace `tempfile.mkdtemp` + remove with `tempfile.TemporaryDirectory`
> context manager
> * Replace `io.open()` by a plain `open()`
> * Evaluate need for `assertRegex`, `assertRaisesRegex` in tests. Some
> usage is merely to account for differences in messages between Python 2
> and 3.
> * `re.U`, `re.UNICODE` (default behavior of Python 3)
New description:
This is a tracking ticket of things that we can remove when we drop Python
2 compatibility in Django 2.0. Please edit the description of the ticket
as you come across new items.
* `django.core.mail.message.make_msgid()` #23905
* `django.dispatch.weakref_backports`
* `django.http.cookie` workarounds
* `django.utils.2to3_fixes`
* `django.utils.decorators.ContextDecorator`
* `django.utils.encoding`
* `@python_2_unicode_compatible`
* force/smart _unicode
* either force/smart _text or force/smart _str
* `django.utils.html_parser.use_workaround`
* `django.utils.http` functions like `urlquote_plus` -- I think the
versions of these functions on Python 3 don't have the unicode characters
bug we are working around.
* `django.utils.lru_cache` - [https://github.com/django/django/pull/7877
PR 7877]
* `django.utils.six`
* `from __future__ import unicode_literals`
* `str()` stuff for environment variables, e.g.
0bfb53866199f366ed140d49938fd185e5898156
* Inheriting from `object` in `django.core.servers.basehttp` (and perhaps
other places) ala 4ee06ec3fc8e94d164afbd2f9c880c60c658a9ac
* `git grep 'long int'` (mostly docs)
* `django.utils._os [npath,upath]`
* In tests: `contextlib.closing(self.urlopen` (`contextlib.closing` no
longer needed)
* Support for pysqlite (doesn't support Python 3)
* Replace `super(ClassName, self)` with `super()`
* Remove `# -*- coding: utf-8 -*-` source file encoding (that's the
default on Python 3)
* Evaluate replacement of custom `__del__` methods by
[https://docs.python.org/3/library/weakref.html#weakref.finalize
weakref.finalize]
* Remove `__ne__` from objects already defining a `__eq__` -
[https://github.com/django/django/pull/7877 PR 7877]
* Remove note about PYTHONHASHSEED (see #26243)
* Remove Field.creation_counter (replace by metaclass `__prepare__`
returning `OrderedDict()`,
https://docs.python.org/3/reference/datamodel.html#preparing-the-class-
namespace)
* `django.test.utils.reset_warning_registry()`
* Replace `errno` checks by `IOError` subclasses defined by
[https://www.python.org/dev/peps/pep-3151/ PEP 3151]
* `django.utils.glob`
* `django.utils.cookies.SimpleCookie`
* `django.test.mock`
* Replace `tempfile.mkdtemp` + remove with `tempfile.TemporaryDirectory`
context manager
* Replace `io.open()` by a plain `open()` -
[https://github.com/django/django/pull/7877 PR 7877]
* Evaluate need for `assertRegex`, `assertRaisesRegex` in tests. Some
usage is merely to account for differences in messages between Python 2
and 3.
* `re.U`, `re.UNICODE` (default behavior of Python 3)
--
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Ticket URL: <https://code.djangoproject.com/ticket/23919#comment:40>
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