timing.py

# <pep8 compliant>

import time

import io
import cProfile
import pstats


def profile(fnc):
    """Create decorator function that uses cProfile to profile a function."""
    def inner(*args, **kwargs):

        pr = cProfile.Profile()
        pr.enable()
        retval = fnc(*args, **kwargs)
        pr.disable()
        s = io.StringIO()
        sortby = 'cumulative'
        ps = pstats.Stats(pr, stream=s).sort_stats(sortby)
        ps.print_stats()
        print(s.getvalue())
        return retval

    return inner


def timing(f):
    def wrap(*args):
        time1 = time.time()
        ret = f(*args)
        time2 = time.time()
        print('%s function took %0.3f ms' % (f.__name__,
                                             (time2 - time1) * 1000.0))
        return ret
    return wrap