What are assertions in Python?

What are assertions in Python?

Assertions in Python are statements that check if a condition is true. If the condition is false, an AssertionError is raised.

Can you give me an example of how to use assertions?

Sure! Here's a simple example: assert x > 0, 'x must be positive'. This checks if x is greater than 0.

When should I use assertions in my code?

Use assertions to catch programming errors during development. They help ensure that your code behaves as expected.

Are assertions removed in production code?

Yes, assertions can be disabled with the -O (optimize) flag when running Python, so they should not be used for data validation.