Itertools compress method explained

The compress method: Make an iterator that filters elements from data returning only those that have a corresponding element in selectors that evaluates to True. Stops when either the data or selectors iterables has been exhausted

from itertools import compress
names = ['Robby', 'Valerie', 'Lindsey']
sex =   [1, 0, 0]
print list(compress(names, sex))

['Robby']