Question

I am working on problem set 6 the play faster part
here is my code http://dpaste.com/604229/
when i run it it keeps giving me unhashable type but I cannot figure out what to change.
Please help and any other suggestions you may have would be appreciated

Answer 1

I got it working much better now that I found the error. My only issue now is that it sometimes gives me an invalid word instead of ending the simulation.
here is the new code http://dpaste.com/604563/

Answer 2

it appears that rearrange_dict has some funny things in it:
http://dpaste.com/604603/

kudos on your substrings function