Error importing C-extensions for Numpy on Win10 Conda Env

Kai Brown

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Jan 13, 2021, 5:56:59 AM1/13/21

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Hi there,

I posted a question already but it may have been lost in moderation as I cannot view it in any tab or view on the website...

I have setup an apache installation through WAMP on windows and connected it to a virtual environment on anaconda python 3.8 called 'MMDBpy', installing Mod_WSGI into the venv and using module-config to configure Apache.

I am trying to host a flask app on localhost on a local network with a self-signed ssl certificate for completeness (Limited users and we are aware of possible certificate duplication). My app's code runs correctly in debug mode, connecting to the WAMP MySQL server for data to display.

I have successfully run the helloworld .wsgi script from the docs, as well as the scripts in the "check your installation" section at https://modwsgi.readthedocs.io/en/master/user-guides/checking-your-installation.html.

---Python Installation in use:

sys.version = '3.8.5 (default, Sep 3 2020, 21:29:08) [MSC v.1916 64 bit (AMD64)]' sys.prefix = 'C:\\Users\\Constantin\\anaconda3\\envs\\MMDBpy'

---Python module search path:

sys.path = ['C:\\Users\\Constantin\\anaconda3\\envs\\MMDBpy\\python38.zip', 'C:\\Users\\Constantin\\anaconda3\\envs\\MMDBpy\\DLLs', 'C:\\Users\\Constantin\\anaconda3\\envs\\MMDBpy\\lib', 'C:\\wamp64\\bin\\apache\\apache2.4.46\\bin', 'C:\\Users\\Constantin\\anaconda3\\envs\\MMDBpy', 'C:\\Users\\Constantin\\anaconda3\\envs\\MMDBpy\\lib\\site-packages', 'C:\\Users\\Constantin\\anaconda3\\envs\\MMDBpy\\lib\\site-packages\\win32', 'C:\\Users\\Constantin\\anaconda3\\envs\\MMDBpy\\lib\\site-packages\\win32\\lib', 'C:\\Users\\Constantin\\anaconda3\\envs\\MMDBpy\\lib\\site-packages\\Pythonwin']

---Embedded or Daemon Mode Check:

mod_wsgi.process_group = ''

---Python Sub-interpreter Check:

mod_wsgi.application_group = ''

---Multithreading Check:

wsgi.multithread = True

I ran into a problem when I tried to use MMDBpy.wsgi to import my Python Dash App from my scripts. I saved the scripts into the install location of my venv because it appears on the python module path and the .wsgi file could then detect and import it.
This successfully begins running my dash app but fails when importing pandas - the c-extensions of numpy throw an error:
I reinstalled python and repeated the entire mod_WSGI configuration problem but it didnt solve it - conda shows numpy and pandas are both up to date. The website given for NumPy in the error logs blames the installation or a problem with activating the environment... That's as far as I've got.
Any help with this is much appreciated. :)

---Error Log - Log level INFO:

[Wed Jan 13 11:22:48.082868 2021] [ssl:info] [pid 6032:tid 1292] [client ::1:57848] AH01964: Connection to child 61 established (server localhost:443)

[Wed Jan 13 11:22:48.089864 2021] [wsgi:info] [pid 6032:tid 1292] [client ::1:57848] mod_wsgi (pid=6032, process='', application=''): Loading Python script file 'C:/wamp64/https_www/MMDBpy.wsgi'., referer: https://localhost/

[Wed Jan 13 11:22:48.103850 2021] [wsgi:error] [pid 6032:tid 1292] [client ::1:57848] mod_wsgi (pid=6032): Failed to exec Python script file 'C:/wamp64/https_www/MMDBpy.wsgi'., referer: https://localhost/

[Wed Jan 13 11:22:48.103850 2021] [wsgi:error] [pid 6032:tid 1292] [client ::1:57848] mod_wsgi (pid=6032): Exception occurred processing WSGI script 'C:/wamp64/https_www/MMDBpy.wsgi'., referer: https://localhost/

[Wed Jan 13 11:22:48.103850 2021] [wsgi:error] [pid 6032:tid 1292] [client ::1:57848] Traceback (most recent call last):\r, referer: https://localhost/

[Wed Jan 13 11:22:48.104851 2021] [wsgi:error] [pid 6032:tid 1292] [client ::1:57848] File "C:/wamp64/https_www/MMDBpy.wsgi", line 1, in <module>\r, referer: https://localhost/

[Wed Jan 13 11:22:48.104851 2021] [wsgi:error] [pid 6032:tid 1292] [client ::1:57848] from MMDBA_Scripts.Dash_Server_Host import app as application\r, referer: https://localhost/

[Wed Jan 13 11:22:48.104851 2021] [wsgi:error] [pid 6032:tid 1292] [client ::1:57848] File "C:\\Users\\Constantin\\anaconda3\\envs\\MMDBpy\\MMDBA_Scripts\\Dash_Server_Host.py", line 29, in <module>\r, referer: https://localhost/

[Wed Jan 13 11:22:48.104851 2021] [wsgi:error] [pid 6032:tid 1292] [client ::1:57848] import pandas as pd\r, referer: https://localhost/

[Wed Jan 13 11:22:48.104851 2021] [wsgi:error] [pid 6032:tid 1292] [client ::1:57848] File "C:\\Users\\Constantin\\anaconda3\\envs\\MMDBpy\\lib\\site-packages\\pandas\\__init__.py", line 16, in <module>\r, referer: https://localhost/

[Wed Jan 13 11:22:48.104851 2021] [wsgi:error] [pid 6032:tid 1292] [client ::1:57848] raise ImportError(\r, referer: https://localhost/

[Wed Jan 13 11:22:48.104851 2021] [wsgi:error] [pid 6032:tid 1292] [client ::1:57848] ImportError: Unable to import required dependencies:\r, referer: https://localhost/

[Wed Jan 13 11:22:48.104851 2021] [wsgi:error] [pid 6032:tid 1292] [client ::1:57848] numpy: \r, referer: https://localhost/