mod_wsgi for django with conda environment in Windows doesn't work

[Lorenzo Lo Giudice]

This is my first post in stackoverflow.
I'll try to explain to you what I've done with steps and what I've done to try to solve the problems.

# Problem
I'm struggling with the configuration of mod_wsgi for my django project.

When i try to connect to localhost:8001 (port listened by mod_wsgi) I get an infinite loading or a "This site can’t be reached" page.

# What i've done

I have installed apache2.4 with apachelounge (​https://www.apachelounge.com/download/) in my C:
drive.

I have installed anaconda (I haven't set conda in path) and I created my environment for my django project (called *production*).

It runs correctly if I run the command python manage.py runserver
(if i go to ​http://localhost:7000/ (port set to manage.py) it works.

I installed mod_wsgi in my conda environment with pip install mod-wsgi.

# Files

*httpd.conf* (C:\Apache24\conf\httpd.conf)

ServerName localhost
Listen 8001

...

LoadFile "C:/Users/my_name/anaconda3/envs/production/python39.dll"
LoadModule wsgi_module "C:/Users/my_name/anaconda3/envs/production/lib/site-packages/mod_wsgi/server/mod_wsgi.cp39-win_amd64.pyd"
WSGIPythonHome "C:/Users/my_name/anaconda3/envs/production"
WSGIScriptAlias / "C:/Users/my_name/my_path/Analyser/wsgi.py"

<Directory "C:/Users/my_name/my_path/Analyser">
    <Files wsgi.py>
        Require all granted
    </Files>
</Directory>

LogLevel info
WSGIApplicationGroup %{GLOBAL}

*wsgi.py* (C:/Users/my_name/my_path/Analyser/wsgi.py)

import os
import sys
from django.core.wsgi import get_wsgi_application

# add the project folder to the path (otherwise it says (core: ModuleNotFound)
_BASE_DIR = r'C:\Users\my_name\my_path\Analyser'
if _BASE_DIR not in sys.path:
    sys.path.append(_BASE_DIR)

os.environ['DJANGO_SETTINGS_MODULE'] = 'core.settings'
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "core.settings")

# set CRYPTOGRAPHY_OPENSSL_NO_LEGACY to True otherwise it says OpenSSL...
os.environ.setdefault("CRYPTOGRAPHY_OPENSSL_NO_LEGACY", "1")

print(f'checkpoint 1')
application = get_wsgi_application()
print(f'checkpoint 2')

*settings.py* (C:/Users/my_name/my_path/Analyser/core/settings.py)

WSGI_APPLICATION = 'wsgi.application'

# other stuff
from split_settings.tools import include
include('config/*.py',)

# Issue 1: No module named 'encodings'
This site can't be reached when going to localhost:8001
[Issue1: This site can't be reached](​https://i.stack.imgur.com/i0p9r.png)

*error.log*

Python path configuration:
  PYTHONHOME = (not set)
  PYTHONPATH = (not set)
  program name = 'python'
  isolated = 0
  environment = 1
  user site = 1
  import site = 1
  sys._base_executable = 'C:\\Apache24\\bin\\httpd.exe'
  sys.base_prefix = 'C:\\Users\\my_name\\anaconda3\\envs\\production'
  sys.base_exec_prefix = 'C:\\Users\\my_name\\anaconda3\\envs\\production'
  sys.platlibdir = 'lib'
  sys.executable = 'C:\\Apache24\\bin\\httpd.exe'
  sys.prefix = 'C:\\Users\\my_name\\anaconda3\\envs\\production'
  sys.exec_prefix = 'C:\\Users\\my_name\\anaconda3\\envs\\production'
  sys.path = [
    'C:\\Users\\my_name\\anaconda3\\envs\\production\\python39.zip',
    '.\\DLLs',
    '.\\lib',
    'C:\\Apache24\\bin',
  ]
Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding
Python runtime state: core initialized
ModuleNotFoundError: No module named 'encodings'

Current thread 0x00007520 (most recent call first):
<no Python frame>

tried with SetEnv in httpd.conf but it didn't work

# did not work
SetEnv PYTHONHOME "C:/Users/my_name/anaconda3/envs/production"
SetEnv PYTHONPATH "C:/Users/my_name/anaconda3/envs/production/Lib/site-packages"

I added to my environment variables

• PYTHONHOME >> C:\Users\my_name\anaconda3\envs\production
• PYTHONHOME >> C:\Users\my_name\anaconda3\envs\production\Lib\site-packages

Now when i go to localhost:8001 i don't get the same error.

# Issue 2: infinite loading
Infinite loading when going to localhost:8001

*error.log*

[Thu Mar 23 14:01:14.062920 2023] [wsgi:info] [pid 31308:tid 1076] mod_wsgi (pid=31308): Create interpreter 'localhost:8001|'.
[Thu Mar 23 14:01:14.065559 2023] [wsgi:info] [pid 31308:tid 1076] mod_wsgi (pid=31308): Adding 'C:/Users/my_name/anaconda3/envs/production/Lib/site-packages' to path.
[Thu Mar 23 14:01:14.068564 2023] [wsgi:info] [pid 31308:tid 1076] mod_wsgi (pid=31308): Adding 'C:/Users/my_name/my_path/Analyser' to path.
[Thu Mar 23 14:01:14.072611 2023] [wsgi:info] [pid 31308:tid 1076] [client ::1:49573] mod_wsgi (pid=31308, process='', application='localhost:8001|'): Loading Python script file 'C:/Users/my_name/my_path/Analyser/wsgi.py'.
[Thu Mar 23 14:01:14.298046 2023] [wsgi:error] [pid 31308:tid 1076] checkpoint 1
[Thu Mar 23 14:01:14.298046 2023] [wsgi:error] [pid 31308:tid 1076] \r

I tried to set WSGIApplicationGroup %{GLOBAL} in httpd.conf, now i get an Internal Server Error page.

# Issue 3: internal server error (continue of Issue 2)

Now the in the *error.log* appears:

raise RuntimeError(\r
[Thu Mar 23 14:09:06.159643 2023] [wsgi:error] [pid 22156:tid 1056] [client ::1:49632] RuntimeError: OpenSSL 3.0's legacy provider failed to load. This is a fatal error by default, but cryptography supports running without legacy algorithms by setting the environment variable CRYPTOGRAPHY_OPENSSL_NO_LEGACY. If you did not expect this error, you have likely made a mistake with your OpenSSL configuration.\r

I tried to set CRYPTOGRAPHY_OPENSSL_NO_LEGACY to True

I tried writing SetEnv CRYPTOGRAPHY_OPENSSL_NO_LEGACY 1 in httpd.conf but it did not work, so
I added os.environ.setdefault("CRYPTOGRAPHY_OPENSSL_NO_LEGACY", "1") in wsgi.py.

# Issue 4: infinite loading (again...)
When i visit localhost:8001 i get an infinite loading.

*error.log*

[Thu Mar 23 14:23:33.150762 2023] [wsgi:info] [pid 3540:tid 1044] [client ::1:49785] mod_wsgi (pid=3540, process='', application=''): Loading Python script file 'C:/Users/my_name/my_path/Analyser/wsgi.py'.
[Thu Mar 23 14:23:33.411332 2023] [wsgi:error] [pid 3540:tid 1044] checkpoint 1
[Thu Mar 23 14:23:33.411332 2023] [wsgi:error] [pid 3540:tid 1044] \r

And now I'm stuck here.

Stackoverflow issue: ​https://stackoverflow.com/posts/75823890

[Mariusz Felisiak]

Please don't use Trac as a support channel. Closing per TicketClosingReasons/UseSupportChannels.