Why using lua instead of python?

[StephenKyung]

Hi, I'm testing this model in two different programming languages, python and Lua.
But whenever I tested it in python its have not good enough result compared with Lua one (almost 8 percent in Edit Distance Accuracy).
Can you explain why you implemented in Lua?

[StephenKyung]

#26 (comment)

and for one another.
Do you think if I changed python code to convert images to greyscare first, can make any improvement?