NameError: name Timer is not defined

Question

I have a small python program written for python 2.7.3:

import time
def fun():
    print('Hi')
for i in range(3):
    Timer(i, fun).start()

When I run it, I get the error:

NameError: name 'Timer' is not defined

How can I find out which module supports this functionality?

I've edited your question to pull out the opinion based question on Python 2 vs 3. — Andy
– Andy ♦, Commented Jun 13, 2014 at 17:22

Reloader · Accepted Answer · 2014-06-13 17:22:04Z

5

Timer is in the timeit module, not time. And to call it like you want to, you would have to from timeit import Timer, not just import timeit. If you just declare import timeit, then you would have to write timeit.Timer instead of Timer everywhere in the code.

answered Jun 13, 2014 at 17:22

Reloader

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3 Comments

Atovange Over a year ago

Thanks, but i get the error : ValueError: stmt is neither a string nor callable

Reloader Over a year ago

You need lambda function - stackoverflow.com/questions/7523767/…

Atovange Over a year ago

Then I get the error : AttributeError: 'Timer' object has no attribute 'start'

Andy · Accepted Answer · 2014-06-13 17:23:45Z

0

You are looking for the timeit module. You can use your existing code by replacing your current import:

from timeit import Timer

answered Jun 13, 2014 at 17:23

Andy♦

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