[stared]

Actually, I opened “Teaching deep learning” and smiled as I saw how it evolved:

> There is a handful of popular deep learning libraries, including TensorFlow, Theano, Torch and Caffe. Each of them has Python interface (now also for Torch: PyTorch)

> [...]

> EDIT (July 2017): If you want a low-level framework, PyTorch may be the best way to start. It combines relatively brief and readable code (almost like Keras) but at the same time gives low-level access to all features (actually, more than TensorFlow).

> EDIT (June 2018): In Keras or PyTorch as your first deep learning framework I discuss pros and cons of starting learning deep learning with each of them.