Urls.py not updating on Django production server , which uses nginx and gunicorn

I am currently hosting a Django Webapp on an AWS EC2 instance, To run it in production mode I use NGINX and gunicorn.

The Error that I am facing is:

The production server doesnt seem to update urls.py, no matter what I do

App used to transfer files from local file to instance : FileZilla

Steps that I have taken trying to solve the issue:

1. Deleting the urls.py and rewriting it

2. Checking if other files also refuse to get updated

   RESULT of 2nd step: Other files are successfully getting updated, I tested with static files and with index.html

3. Checking if the file is updated in the instance using The nano editor

   RESULT of 3rd step: The file is properly updated in the instance, with all changes being reflected

4. Running it on the instance using python manage.py runserver (for development purposes), and found out that the urls.py is getting updated properly when using runserver

Other Information:

1.Everything was getting updated properly just yesterday, but suddenly it decides to act rebellious

2. I have updated all packages using sudo yum install

3. I have restarted nginx and gunicorn: using commands such as :

   sudo systemctl start gunicorn

   sudo systemctl enable gunicorn

   sudo systemctl restart nginx

4. I have tried checking for errors using sudo nginx -t, but no errors show up

5. I've checked the error logs, using sudo tail -f /var/log/nginx/error.log , but no errors show
   up here either

How do I solve this?

Thank you

Ok so I found the solution.

Steps taken to solve it:

1. I tried to use python3 manage.py runserver on my instance, and found out that the files were updated fine , therefore the issue was with the production side

2. I figured out that only static and html files were being updated (nginx serves those) , so the problem was not with that

3. I was using gunicorn to help with the views.py and urls.py and other such files, so the problem could be with gunicorn

FINAL SOLUTION:

So I ran the command sudo systemctl restart gunicorn, and the code worked perfectly