Python 3.4.3 incompatibilities

[fkromer]

I tried to run lettuce 0.2.21 on a python 3.4.3 project. I figured out (by running 2to3 over the files) that there are some python 3 incompatibilities (e.g. print statements in init.py) and missing corresponding python version checks. Is someone addressing this issue already (on which repo which i can contribute to)?

Edit: Sorry, dublicate of #458.