print fails on windows

[Cielquan]

On windows I encounter the problem that the colorful output looks like this:

�[35mtester.py�[0m:�[32m3�[0m �[32;3m<module>�[0m
    'hi'�[2m (str) len=2�[0m

After some research I found the reason. Windows added support for ACSII escapes but they have to be activated.

I also found a solution I think. I will test it a bit more and would than create a pull request.

EDIT: As a workaround one can disable colors with the environment variable PY_DEVTOOLS_HIGHLIGHT=false