python file output to log file

[DeaD_EyE]

1. You have to use the log('Your Message') everywhere, where you want to log. The print_function stays still the print_function and does not change.
   
2. You're using Python 2.7, which is deprecated 2020. Upgrade to Python 3.7. In Python 2.7 print is not a function, it's a statement and the parenthesis around the arguments are recognized as a tuple and a tuple has no keyword assignment. If you need to stay with legacy Python, you should use the imports from __future__:
   

   from __future__ import print_function

   Then you must use everywhere print as a function
   

The logging module is doing a better job. You've more control about different handlers and formatting.
You could also try https://github.com/Delgan/loguru
The boiler-plate code has been removed :-)