Update django to 4.2.0, update python to 3.11

This PR updates python and django. When CSRF_TRUSTED_ORIGINS is present, all backend tests are now succesfull, but I suggest we test this update thoroughly. I ran all the experiments on my machine and everything seems to be working fine.

Updated:

Python => 3.11
Django => 4.2

This needs to be added to the environment variables:

CSRF_TRUSTED_ORIGINS=http://localhost:3000 # needs to be changed when running in production

See: Django documentation

Deprecated functions

django.utils.translation.ugettext_lazy

This is used by Django inline actions which hasn't been updated since 2021.

Fixed by: putting django.utils.translation.ugettext_lazy = gettext_lazy in base_settings.py

Behaviour changes

When creating a new playlist and selecting a csv file, the csv was always processed even though process_csv was not selected

Fixed by: Only reading the csv file to the Playlist.csv field when process_csv is selected.

Syntax changes

random.sample Changed in python 3.11: The population must be a sequence. Automatic conversion of sets to lists is no longer supported.

Fixed by converting the output to a list. old_songs = random.sample(list(old_new_song_set), k=n_old)

Flake8 config file doesn't allow inline comments anymore.
A lot of Admin tests were failing

Fixed by replacing:

    @classmethod
    def setUpTestData(self):
        self.factory = RequestFactory()
        self.site = AdminSite()
        self.admin = PhaseAdmin(
            Phase,
            self.site
        )

with:

    def setUp(self):
        self.admin = PhaseAdmin(model=Phase,
                                admin_site=AdminSite
                                )

In python 3.11 this caused the following error:

======================================================================
ERROR: test_search_fields (image.tests.test_admin.ImageAdminTest.test_search_fields)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/server/image/tests/test_admin.py", line 34, in test_search_fields
    self.assertEqual(self.admin.search_fields, expected_search_fields)
                     ^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/django/test/testcases.py", line 1402, in __get__
    data = deepcopy(self.data, memo)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 172, in deepcopy
    y = _reconstruct(x, memo, *rv)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 271, in _reconstruct
    state = deepcopy(state, memo)
            ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 146, in deepcopy
    y = copier(x, memo)
        ^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 231, in _deepcopy_dict
    y[deepcopy(key, memo)] = deepcopy(value, memo)
                             ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 172, in deepcopy
    y = _reconstruct(x, memo, *rv)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 271, in _reconstruct
    state = deepcopy(state, memo)
            ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 146, in deepcopy
    y = copier(x, memo)
        ^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 231, in _deepcopy_dict
    y[deepcopy(key, memo)] = deepcopy(value, memo)
                             ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 172, in deepcopy
    y = _reconstruct(x, memo, *rv)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 271, in _reconstruct
    state = deepcopy(state, memo)
            ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 146, in deepcopy
    y = copier(x, memo)
        ^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 231, in _deepcopy_dict
    y[deepcopy(key, memo)] = deepcopy(value, memo)
                             ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 146, in deepcopy
    y = copier(x, memo)
        ^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 231, in _deepcopy_dict
    y[deepcopy(key, memo)] = deepcopy(value, memo)
                             ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 172, in deepcopy
    y = _reconstruct(x, memo, *rv)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 271, in _reconstruct
    state = deepcopy(state, memo)
            ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 146, in deepcopy
    y = copier(x, memo)
        ^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 231, in _deepcopy_dict
    y[deepcopy(key, memo)] = deepcopy(value, memo)
                             ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/copy.py", line 161, in deepcopy
    rv = reductor(4)
         ^^^^^^^^^^^
TypeError: cannot pickle 'module' object

Amsterdam-Music-Lab / MUSCLE