python 2 support

[paulbrodersen]

Awesome work. Works beautifully only that I couldn't get the package (downloaded from pip) to work in a python 2 environment. Not saying that you should support python 2, but maybe add a warning to the README.

---

Also, if you want to add some more pretty pictures to stimulate people's imagination of what can be done with this package, I just made this using rpack:
https://stackoverflow.com/a/53156709/2912349

You have a criminally low star/fork count for something so useful.

[Penlect]

Hi Paul,

Thank you very much for your feedback! Made me really happy. I updated the readme file to notify that only Python 3 is supported and also embedded a link to your fantastic image in the examples section. I am very happy that you found the package useful.

Cheers,
Daniel

[paulbrodersen]

Keep up the good work!