Python 2 -> Python 3 . Should I rewrite all the algorithms in Python 3 ?

[Ramit Mittal]

Should i rewrite all the algorithms in Python 3 ?
Suggestions ?

[Wenxuan Zhou]

Now there are a lot people who are still using Python 2.x and have no problems sticking with it. I think we better keep the original python 2 codes but rewrite python 3 codes in seperate files include them in the same directory so it will be easier for others to choose. #53