This was originally added to ensure that Django 2.0+ could not be
installed on Python 2.7 or earlier, in particular where the version of
pip or setuptools being used did not support the python_requires
argument.
Unfortunately, as REQUIRED_PYTHON has been bumped, this check no longer
satisfies its original purpose and could be misleading, e.g. if
REQUIRED_PYTHON is 3.8 and CURRENT_PYTHON is 3.7 it would request that
Django < 2 is installed, but there are later versions of Django that
support Python 3.7.
By the time Django 4 is released in December 2021, the python_requires
argument will have been supported for over five years, and Python 2 will
have been EOL for nearly two years, so we can remove this check.
See https://packaging.python.org/guides/distributing-packages-using-setuptools/#python-requires
Unnecessary since abc0777b63 where the
extension was changed to not be ".py". Also, django.bin doesn't have
a __init__.py file, so it is not a package and therefore it's not
excluded by this argument.
The previous version of Argon2 uses encoded hashes of the form:
$argon2d$m=8,t=1,p=1$<salt>$<data>
The new version of Argon2 adds its version into the hash:
$argon2d$v=19$m=8,t=1,p=1$<salt>$<data>
This lets Django handle both version properly.
* Prevents issues with moving download locations in the future, see
https://www.djangoproject.com/m/bad-installer.txt
* Removes a location that release managers need to update with a
new version
* Very little use when files are hosted on PyPI (as Django's are)
Before this change, if you had a global Django installation in /usr/local/, you
might get a spurious warning when installing Django within a virtualenv.
Thanks epicserve for the report and debugging help.
Setup.py now warns if it detects that Django is being installed over top
of a previous installation that was never removed. This should only
happen when installing with ``python setup.py install``, as pip
automatically uninstalls before installing a new version and
easy_install installs as an egg directory.
Also generally updated the installation doc.
Nick Pope
Mariusz Felisiak
Jon Dufresne
Nick Pope
Stephen Rauch
Bastien Vallet
Andrew Godwin
Tim Graham
Asif Saifuddin Auvi
Philip James
Carlton Gibson
Zac-HD
Adam Chainz
Bas Westerbaan
Alex Gaynor
Berker Peksag
Florian Apolloner
Aymeric Augustin
Jacob Kaplan-Moss
Donald Stufft
Carl Meyer
Claude Paroz
Honza Kral
Ramiro Morales
Pablo Recio
James Bennett