python - List comprehension for turning a lists of lists of strings into a list of lists of ints and float -

i have list of lists. sublists each contain 3 strings.

bins = [['1', '2', '3.5'], ['4', '5', '6.0']] 

i need convert lists of lists each sublist consists of 2 integers , float. thinking of list comprehension along lines of:

[ [int(start), int(stop), float(value)] bn in bins [start, stop, value] in bn] 

you're close:

[[int(start), int(stop), float(value)] start, stop, value in bins] 

you don't need bn variable hold each bin or loop iterate through contents; each bin can unpacked directly 3 variables.