Tirsvad-Udemy-100-days-of-code/054-speed-calc-decorator
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Step 4 Fast vs Slow
Tirsvad edited this page 2026-11-06 06:49:24 +01:00
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Step 4: fast against slow

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@speed_calc_decorator above both functions of the assignment gives the expected output:

@speed_calc_decorator
def fast_function():
    for i in range(1_000_000):
        i * i


@speed_calc_decorator
def slow_function():
    for i in range(10_000_000):
        i * i

Step 4: fast against slow

Run it with python -m speed_calc.

What we gained

  • One decorator times any number of functions; the timing code is written once.
  • slow_function loops ten times as often as fast_function, so it takes about ten times as long. The numbers differ on every machine, but the ratio does not.
  • A clean layout for a small exercise: src/ for code, tests/ for tests, docs/ for documents, constants.py for constants, and Doxygen comments for the API.

Speed Calc Decorator

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