[narimiran]

> but then someone asks: Python 2 or Python 3?

And then you say: It is 2017. Python 3.

[DiNovi]

Sure, but a lot of useful machine learning libs are still dependent on 2

[narimiran]

> a lot of useful machine learning libs are still dependent on 2

If they are a beginner, they would probably start with scikit-learn, which works on Py3.

As does TensorFlow. As does Theano. Etc.

[PascLeRasc]

They're not starting with ML, and by the time they would it'll be trivial to "learn" Python 2 as a Py3 programmer.