All stable versions of the big ML frameworks are still 2.7.
[1] http://www.deeplearning.net/software/theano/install.html
[2] https://www.tensorflow.org/versions/r0.11/get_started/os_set...
[3] https://keras.io/#you-have-just-found-keras
[4] https://lasagne.readthedocs.io/en/latest/user/installation.h...
About the only thing that is dead like that seems to be Enthought project for drawing and creating UI for graphs.