Is there any package in python similar to darch in R?
A simple google with keyword    gives me:


A tutorial about implement DBN from scratch
http://deeplearning.net/tutorial/DBN.html
A python package about the DBN
https://github.com/albertbup/deep-belief-network
Some interesting discussion about the DBN (and little history)
https://github.com/keras-team/keras/issues/748
SO discussion 
https://stackoverflow.com/questions/23188131/deep-belief-network-with-scikit