How to write code that works in both Python 2 and Python 3?

Question

A Django website I maintain currently uses Python 2.7 but I know that I\'ll have to upgrade it to Python 3 in a couple of months. If I\'m writing code right now that has to

Answer 1

There are a few different tools that will help you make sure you are writing python2/3 compatible code.

If you are interested in porting python2 code into python3, then the 2to3 program that comes with the standard library will try to convert a python 2 program to python 3.

https://docs.python.org/2/library/2to3.html

Another great tool is pylint. pylint is a python linter that will describe issues to you without fixing them. If you pip install pylint on a python3 environment, then it will analyze your code based on python 3's rules. If you use python 2 to install pylint, it will do the same but with python 2's rules.

There are other popular and similar tools like flake8 or autopep8, but I am not familiar with them enough to advertise them.