Merge pull request #3404 from kelvinxu/stack_trace

Add stack trace for nnet

Merge pull request #3404 from kelvinxu/stack_trace
8f038cc6 · Pascal Lamblin · cebafe0d · 8b239b25 · 8f038cc6
--- a/theano/tensor/nnet/nnet.py
+++ b/theano/tensor/nnet/nnet.py