python - Importing a local variable in a function into timeit -

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i need time execution of function across variable amounts of data.

def foo(raw_data):    preprocessed_data = preprocess_data(raw_data)    time = timeit.timer('module.expensive_func(preprocessed_data)', 'import module').timeit()

however, preprocessed_data not global variable. cannot imported from __main__. local subroutine.

how can import data timeit.timer environment?

pass callable time, rather string. (unfortunately, introduces function call overhead, it's viable when thing time swamps overhead.)

time = timeit.timeit(lambda: module.expensive_func(data))

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