Measure decorator and context manager, for measuring execution time. For multiple processes, multiple instances are needed.

measure_decorator.py

class Measure(object):
    def __init__(self):
        self.__elapsed = None

    def __enter__(self):
        self.__start = time()

    def __exit__(self, *args):
        self.__elapsed = time() - self.__start

    @property
    def elapsed(self):
        return self.__elapsed

    def __call__(self, fn):
        @wraps(fn)
        def measured(*args, **kwargs):
            start = time()
            ret = fn(*args, **kwargs)
            return time() - start, ret
        return measured
measure = Measure()