How to use 2to3 properly for python?

Question

I have some code in python 2.7 and I want to convert it all into python 3.3 code. I know 2to3 can be used but I am not sure exactly how to use it.

Answer 1

On Windows:

python {path_to_python}\tools\scripts\2to3.py --output-dir={output_dir} -W -n {input_dir}

path_to_python = directory where Python is installed

output_dir = directory where to output the Python3 scripts

input_dir = directory from where to read the Python2 scripts