[BUG] cannot import name 'url' from 'django.conf.urls'

[tswfi]

Is there an existing issue for this?

• I have searched the existing Issues

Current Behavior

following the "quick start" info from the homepage and going around bug #2007 by manually installing pytz with

pipenv install pytz

Comes the next problem:

demo> ./manage.py createdb
Traceback (most recent call last):
  File "/home/tsw/git/mezzazine_vanilla/myproject/./manage.py", line 14, in <module>
    execute_from_command_line(sys.argv)
  File "/home/tsw/.local/share/virtualenvs/mezzazine_vanilla-ZPLJQPDu/lib/python3.9/site-packages/django/core/management/__init__.py", line 425, in execute_from_command_line
    utility.execute()
  File "/home/tsw/.local/share/virtualenvs/mezzazine_vanilla-ZPLJQPDu/lib/python3.9/site-packages/django/core/management/__init__.py", line 401, in execute
    django.setup()
  File "/home/tsw/.local/share/virtualenvs/mezzazine_vanilla-ZPLJQPDu/lib/python3.9/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/home/tsw/.local/share/virtualenvs/mezzazine_vanilla-ZPLJQPDu/lib/python3.9/site-packages/django/apps/registry.py", line 91, in populate
    app_config = AppConfig.create(entry)
  File "/home/tsw/.local/share/virtualenvs/mezzazine_vanilla-ZPLJQPDu/lib/python3.9/site-packages/django/apps/config.py", line 223, in create
    import_module(entry)
  File "/usr/lib64/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/home/tsw/.local/share/virtualenvs/mezzazine_vanilla-ZPLJQPDu/lib/python3.9/site-packages/mezzanine/boot/__init__.py", line 18, in <module>
    from mezzanine.boot.lazy_admin import LazyAdminSite
  File "/home/tsw/.local/share/virtualenvs/mezzazine_vanilla-ZPLJQPDu/lib/python3.9/site-packages/mezzanine/boot/lazy_admin.py", line 2, in <module>
    from django.conf.urls import include, url
ImportError: cannot import name 'url' from 'django.conf.urls' (/home/tsw/.local/share/virtualenvs/mezzazine_vanilla-ZPLJQPDu/lib/python3.9/site-packages/django/conf/urls/__init__.py)
demo> 

Expected Behavior

The database is created with the command manage.py createdb

Steps To Reproduce

follow the quick start from homepage. Work around #2007 by also installing pytz

Environment

- Operating System: linux
- Python version: 3.9.9
- Django version: 4.0.0
- Database engine and version: I'm guessing the "quick start" from homepage defaults to sqlite? didn't get that far.
- Mezzanine version: 5.0.0

Anything else?

I'm guessing this comes from the fact that django has deprecated django.conf.urls.url in version 3.1 (https://docs.djangoproject.com/en/3.2/ref/urls/#url) and django.urls.re_path() should be used instead. Of course migrating to the new path format might be even better as it is much nicer to read (https://docs.djangoproject.com/en/4.0/ref/urls/)

[skru]

Please trying installing with mezzanine with:

pip install mezzanine==5.0.0

That'll install Django==3.2.10 which still uses django.conf.urls

[tswfi]

Please trying installing with mezzanine with:

pip install mezzanine==5.0.0

That'll install Django==3.2.10 which still uses django.conf.urls

Nope, didn't help. On ubuntu:latest with just pip installed from apt:

root@fa8f13968417:/tmp/mezzanine# pip install mezzanine==5.0.0
Collecting mezzanine==5.0.0
  Downloading Mezzanine-5.0.0-py2.py3-none-any.whl (6.0 MB)
     |████████████████████████████████| 6.0 MB 3.3 MB/s 
Collecting pillow>=7
  Downloading Pillow-8.4.0-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (3.1 MB)
     |████████████████████████████████| 3.1 MB 538 kB/s 
Collecting chardet>=4
  Downloading chardet-4.0.0-py2.py3-none-any.whl (178 kB)
     |████████████████████████████████| 178 kB 546 kB/s 
Collecting requests-oauthlib>=1.3
  Downloading requests_oauthlib-1.3.0-py2.py3-none-any.whl (23 kB)
Collecting requests>=2.1.0
  Downloading requests-2.26.0-py2.py3-none-any.whl (62 kB)
     |████████████████████████████████| 62 kB 281 kB/s 
Collecting beautifulsoup4>=4.5.3
  Downloading beautifulsoup4-4.10.0-py3-none-any.whl (97 kB)
     |████████████████████████████████| 97 kB 1.1 MB/s 
Collecting bleach>=2
  Downloading bleach-4.1.0-py2.py3-none-any.whl (157 kB)
     |████████████████████████████████| 157 kB 1.6 MB/s 
Collecting tzlocal>=2
  Downloading tzlocal-4.1-py3-none-any.whl (19 kB)
Collecting filebrowser-safe>=1.0.0
  Downloading filebrowser_safe-1.0.0-py2.py3-none-any.whl (133 kB)
     |████████████████████████████████| 133 kB 1.6 MB/s 
Collecting grappelli-safe>=1.0.0
  Downloading grappelli_safe-1.0.0-py2.py3-none-any.whl (163 kB)
     |████████████████████████████████| 163 kB 2.0 MB/s 
Collecting django-contrib-comments>=1.9
  Downloading django_contrib_comments-2.1.0-py3-none-any.whl (406 kB)
     |████████████████████████████████| 406 kB 1.9 MB/s 
Collecting django>=2.2
  Downloading Django-4.0-py3-none-any.whl (8.0 MB)
     |████████████████████████████████| 8.0 MB 4.8 MB/s 
Collecting oauthlib>=3.0.0
  Downloading oauthlib-3.1.1-py2.py3-none-any.whl (146 kB)
     |████████████████████████████████| 146 kB 4.8 MB/s 
Collecting idna<4,>=2.5; python_version >= "3"
  Downloading idna-3.3-py3-none-any.whl (61 kB)
     |████████████████████████████████| 61 kB 4.6 MB/s 
Collecting urllib3<1.27,>=1.21.1
  Downloading urllib3-1.26.7-py2.py3-none-any.whl (138 kB)
     |████████████████████████████████| 138 kB 4.3 MB/s 
Collecting certifi>=2017.4.17
  Downloading certifi-2021.10.8-py2.py3-none-any.whl (149 kB)
     |████████████████████████████████| 149 kB 3.5 MB/s 
Collecting charset-normalizer~=2.0.0; python_version >= "3"
  Downloading charset_normalizer-2.0.9-py3-none-any.whl (39 kB)
Collecting soupsieve>1.2
  Downloading soupsieve-2.3.1-py3-none-any.whl (37 kB)
Collecting packaging
  Downloading packaging-21.3-py3-none-any.whl (40 kB)
     |████████████████████████████████| 40 kB 3.9 MB/s 
Collecting six>=1.9.0
  Downloading six-1.16.0-py2.py3-none-any.whl (11 kB)
Collecting webencodings
  Downloading webencodings-0.5.1-py2.py3-none-any.whl (11 kB)
Collecting pytz-deprecation-shim
  Downloading pytz_deprecation_shim-0.1.0.post0-py2.py3-none-any.whl (15 kB)
Collecting backports.zoneinfo; python_version < "3.9"
  Downloading backports.zoneinfo-0.2.1-cp38-cp38-manylinux1_x86_64.whl (74 kB)
     |████████████████████████████████| 74 kB 4.4 MB/s 
Collecting asgiref<4,>=3.4.1
  Downloading asgiref-3.4.1-py3-none-any.whl (25 kB)
Collecting sqlparse>=0.2.2
  Downloading sqlparse-0.4.2-py3-none-any.whl (42 kB)
     |████████████████████████████████| 42 kB 2.2 MB/s 
Collecting pyparsing!=3.0.5,>=2.0.2
  Downloading pyparsing-3.0.6-py3-none-any.whl (97 kB)
     |████████████████████████████████| 97 kB 2.3 MB/s 
Collecting tzdata; python_version >= "3.6"
  Downloading tzdata-2021.5-py2.py3-none-any.whl (339 kB)
     |████████████████████████████████| 339 kB 3.4 MB/s 
Installing collected packages: pillow, chardet, oauthlib, idna, urllib3, certifi, charset-normalizer, requests, requests-oauthlib, soupsieve, beautifulsoup4, pyparsing, packaging, six, webencodings, bleach, backports.zoneinfo, tzdata, pytz-deprecation-shim, tzlocal, filebrowser-safe, grappelli-safe, asgiref, sqlparse, django, django-contrib-comments, mezzanine
Successfully installed asgiref-3.4.1 backports.zoneinfo-0.2.1 beautifulsoup4-4.10.0 bleach-4.1.0 certifi-2021.10.8 chardet-4.0.0 charset-normalizer-2.0.9 django-4.0 django-contrib-comments-2.1.0 filebrowser-safe-1.0.0 grappelli-safe-1.0.0 idna-3.3 mezzanine-5.0.0 oauthlib-3.1.1 packaging-21.3 pillow-8.4.0 pyparsing-3.0.6 pytz-deprecation-shim-0.1.0.post0 requests-2.26.0 requests-oauthlib-1.3.0 six-1.16.0 soupsieve-2.3.1 sqlparse-0.4.2 tzdata-2021.5 tzlocal-4.1 urllib3-1.26.7 webencodings-0.5.1

The main part from the long paste above: Successfully installed ... django-4.0 ...

setup.cfg defines Django > 2.2 (https://github.com/stephenmcd/mezzanine/blob/v5.0.0/setup.cfg#L43) and as Django 4.0.0 was released 7.12.2021 (https://docs.djangoproject.com/en/4.0/releases/4.0/) that is the version that will get installed.

I already started adding support to Django 4.0.0 by making a small pr to filebrowser-safe here: stephenmcd/filebrowser-safe#136

I have other changes already that atleast get the project started with Django 4.0.0 but would like to see the first one checked before committing more time to this.

[skru]

Mezzanine is still using django.conf.urls in a few places in addition to filebrowser so I would hold off and stick with django3.2.10 as mezzanine5.0.0 has only just been released. (this is assuming you just want to get a site up and running).

Obviously pull requests, I'm sure are welcome to bring Django4 in

[tswfi]

@skru yeah, I have a old site I want to upgrade and might as well take a few extra steps to get to the latest Django at the same time :D

filebrowser pr is done and tests are running, but the last step of CI looks like it tries to do a new release which obviously fails.

I'll try to get a similar pr to this repo in the near future.

[danlen]

Yeah, mezzanine==5.0.0 installs django v 4.0. It works then installing django==3.2.10 Thanks

[github-actions]

🎉 This issue has been resolved in version 5.1.0 🎉

The release is available on:

• GitHub release
• v5.1.0

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