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Write a decorator function to log the execution time of a function.

Python/Codingeasy0.2 min readPremium
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Asked at 1 company
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179
questions in Python/Coding
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127E|24M|28H
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1,863
across 7 categories
Asked at these companies
American Express
Expert AnswerPremium
34 wordsInterview-ready
**Pattern:** Wrap function, time before/after, log. Use functools.wraps to preserve __name__, __doc__. time.perf_counter for wall-clock. def log_time(func): @functools.wraps(func) def wrapper(*args, **kwargs): start = time.perf_counter() result = func(*args, **kwargs) print(f'{func.__name__}: {time.perf_counter()-start:.3f}s') return result return wrapper
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