How Can I Accurately Measure the Execution Time of a Python Function?

Measuring Elapsed Execution Time in Python

To determine the execution duration of a function, timeit may not always be the ideal choice. Instead, for precise timekeeping, leverage the time.time() method. It measures the elapsed wall-clock time between two timestamps effectively.

Consider the following example:

import time

start = time.time()
print("hello")
end = time.time()
print(end - start)

This snippet calculates the time taken to execute the print() statement and displays the result in seconds.

Additionally, Python 3.3 introduced perf_counter and process_time, tailored to specific time measurement needs. Prior to Python 3.3, time.clock was recommended, but it has since been deprecated.

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