Language: C C++ D Haskell Lua OCaml PHP Perl Plain Text Python Ruby Scheme Tcl from time import time import itertools values = xrange(10000000) st = time() for value in (value for value in values if value > 2): pass print time() - st #3.91020894051 st = time() for value in filter(lambda x: x > 2, values): pass print time() - st #5.53530097008 st = time() for value in itertools.ifilter(lambda x: x > 2, values): pass print time() - st #5.0817360878 Private [?] Run code