[Scikit-learn-general] Gradient Descent

[Chaitanya Prasad]

Hello

I'm a student currently trying to benchmark a few Black box optimized
algorithms against Gradient Descent Algorithms. It would be extremely
helpful for me if someone could tell me whether the Stochastic Gradient
Descent for scikit has been written in pure Python or whether it has been
optmized using Cython in any manner.

Thanks and Regards.
Chaitanya