How to print a string or write something into a file from Python in Django app

I was trying to log some string to troubleshoot my app. The issue exist only in the server, not in local development server.

My app is running nginx and gunicorn, I have no clue how to use python print() function and where the output will be. Also I tried to write a file, but that also didn’t work. I don’t know why the file was not written in target directory.

I used this code to output a file:

            file_object.write("ip: " + client_host)``` 

Any help will be appreciated.
Thanks