Скачать или смотреть Python for Beginners: How can I Handle Errors (part 1)

Welcome to Pumping Python, my name is Jacob Itegboje and in this video, we're diving deep into a critical skill for any developer: testing exceptions. Have you ever written code that should throw an error, but your tests just... silently pass? This is a huge pain point that can lead to fragile code. I'm going to show you how to write robust tests for exceptions using the unittest framework to ensure your applications are rock-solid.

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In this video, you'll learn the step-by-step process of using assertRaises to check for specific exceptions, a fundamental practice for building reliable and bug-free Python projects.

Here are the key takeaways from this video:
The Power of assertRaises: I'll demonstrate the core method for testing exceptions and show you how to ensure your code fails exactly when you want it to.
Testing for Specific Exceptions: We'll test for a variety of common exceptions like ModuleNotFoundError, NameError, TypeError, and KeyError, so you know exactly which one to use.
Why Specificity Matters: I'll explain the best practice of being explicit with your exception testing and why you should avoid the generic Exception class to write more robust tests.
One Line, One Exception: Discover the crucial rule of thumb for isolating bugs and writing clean exception tests, ensuring your code is maintainable.

00:48 - Setup Project
01:49 - How to Test for ModuleNotFoundError
02:48 - The assertRaises Method
03:43 - NameError
04:58 - AttributeError
07:03 - TypeError
09:41 - Handling IndexError
13:13 - Catching KeyError
14:48 - ZeroDivisionError Happen
16:11 - Why NOT to use Generic Exception
19:56 - Best Practice: One Line Per Handler
20:11 - Review

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