Micropython odd exceptions behaviour

[riklaunim]

I tried to run the "play wav file" example from http://docs.micropython.org/en/latest/p ... _skin.html - but it didn't worked. Exception was that wave.open did not exist - while the function is in that file. After some debugging I used

from wave import *

To find that "_collections" doesn't exist and "collections" should be used instead. Why import error did not propagate?