First one, thanks for release and good idea, here are some advices for the next time, how you should use zip method and lambda instead of __mem__func__ and others empty functions.
Since the loadStepList is declared with ascending numbers from 0 to 100 (by default), we don't have to use min and max method for get the values for range, just the first value and the last value from list.
__mem_func__ and the function 'bos' are useless in that case, we can replace it with a null lambda, will do the same job too.
Using an list comprehension with conditions inside, isn't so readable.
Good idea for zip method to get all the progresses values, but we don't need to initialize like that, you can acces the first reference by using index [0] from iterator.
Should look like this:
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