"""a decorator for printing the time elapsed for function exectuion
"""

import time
from functools import wraps

def elapsed(f):
    try:
        @wraps(f)
        def wrapper(*args, **kwds):
            start = time.time()
            result = f(*args, **kwds)
            seconds = time.time() - start
            m, s = divmod(seconds, 60)
            h, m = divmod(m, 60)
            elapsed = "{0:02.0f}h {1:02.0f}m {2:02.0f}s".format(h, m, s)

            #message = str("Time elapsed ({0}):\t{1}").format(f.__name__, elapsed)
            message = str("({0} elapsed)\n").format(elapsed)
            print(message)
            return result
        return wrapper
    except:
        pass