all: Mean +- std dev: [main2] 283 ns +- 11 ns -> [pr] 280 ns +- 6 ns: 1.01x fasterall with comparison: Mean +- std dev: [main2] 570 ns +- 14 ns -> [pr] 563 ns +- 9 ns: 1.01x fasterBenchmark hidden because not significant (3): generator, list comprehension, generator exhaustGeometric mean: 1.00x faster

import pyperfrunner = pyperf.Runner()setup="""l=[1,2]"""runner.timeit(name=f"generator", stmt=f"(x for x in l)", setup=setup)runner.timeit(name=f"list comprehension", stmt=f"[x for x in l]", setup=setup)stmt="""for x in (_ for _ in ()):    pass"""runner.timeit(name=f"generator exhaust", stmt=stmt, setup=setup)runner.timeit(name=f"all", stmt=f"all( (x for x in l) ) ", setup=setup)runner.timeit(name=f"all with comparison", stmt=f"all( (x==1 for x in l) ) ", setup=setup)

def f():    try:         yield None        print('here')    except GeneratorExit:        print("exiting")    print('done')g = f()next(g)g.close()