Function timethis

src/9/defining_context_managers_the_easy_way/example1.py:5–11

(label)

@contextmanager
def timethis(label):
    start = time.time()
    try:
        yield
    finally:
        end = time.time()
        print('{}: {}'.format(label, end - start))

# Example use
with timethis('counting'):