Fix the Broken Pipeline

Intermediate · Fix the bug · from Python map(), filter(), reduce(), and Higher-Order Functions

From the lesson: Python map(), filter(), reduce(), and Higher-Order Functions

Picture an assembly line in a factory. Raw materials enter at one end. At the first station, each piece is shaped. At the next station, defective pieces are removed. At the final station, all the good pieces are combined into one finished product.

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This code should convert a list of temperature strings like ["32F", "100F", "212F"] into Celsius integers. But it has two bugs.

Expected output:

[0, 38, 100]

Formula: Celsius = (Fahrenheit - 32) * 5 / 9, then round to the nearest integer.

temps = ["32F", "100F", "212F"]

# Bug 1: Need to extract the number from the string

# Bug 2: Formula or conversion issue

result = list(map(lambda t: int((t - 32) * 5 / 9), temps))

print(result)

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