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pythonfunctiondecoratorpython-decorators

Add function name to decorator output

I have a python code snippet that allows me to time function as a decorator. I would like to add function name to the output. and time in milli-seconds 

def func_timer(func):
    def f(*args, **kwargs):
        start   = time.time()
        results = func(*args, **kwargs)
        print "Elapsed: %.6fs" % (time.time() - start)
        return results

    return f

Usage is: 

@func_timer
def foo():
    pass

Current Output is :

Elapsed: 0.005168s

Output desired:

foo Elapsed: 5.168ms
Solution

  • Function objects have a __name__ attribute, you can use that. Simply multiply the time by 1000 if you want milliseconds:

    print "%s Elapsed: %.6fms" % (func.__name__, (time.time() - start) * 1000)