[Django] #34439: mod_wsgi for django with conda environment in Windows doesn't work

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Mar 27, 2023, 10:00:38 AM3/27/23

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#34439: mod_wsgi for django with conda environment in Windows doesn't work
-------------------------------------+-------------------------------------
Reporter: Lorenzo- | Owner: nobody
ITA |
Type: Bug | Status: new
Component: HTTP | Version: 3.2
handling | Keywords: mod_wsgi windows
Severity: Normal | apache conda
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
-------------------------------------+-------------------------------------
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}
```

<br>

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

``` python
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)
``` python
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

--
Ticket URL: <https://code.djangoproject.com/ticket/34439>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.

Django

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Mar 27, 2023, 11:24:46 AM3/27/23

to django-...@googlegroups.com

#34439: mod_wsgi for django with conda environment in Windows doesn't work
-------------------------------------+-------------------------------------

Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------

Changes (by Mariusz Felisiak):

* status: new => closed
* resolution: => invalid

Old description:

New description:

# Files

...

***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'

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

Comment:

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