Example problems in python3.6

Hi players,

I am a newbie in Mxnet, and have successfully installed it on my workstation.
It runs well on the example of “image-classification”, but doesn’t work on “speech-demo” example.
Though I fixed some bugs caused by python3, it still doesn’t work when comes to the model training.
Errors as follow:
File miniconda3/envs/gluon/lib/python3.6/site-packages/mxnet/ndarray/ndarray.py, line 316, in bool
ValueError: The truth value of an NDArray with multiple elements is ambiguous.

-Richard

Since you’re using conda, does python2 work for you?
For the incompatibility bugs you found for python3, do you mind posting a fix (pull request) on the mxnet repository?