What is the difference between == and is in Python?

What is the difference between == and is in Python?

In Python, '==' checks for value equality, while 'is' checks for identity, meaning it checks if both operands refer to the same object.

Can you give me an example of both?

Sure! For example, if you have a = [1, 2, 3] and b = a, then a == b is True (same values), but a is b is also True (same object). If you do c = [1, 2, 3], then a == c is True, but a is c is False.

Why would I use one over the other?

Use '==' when you want to compare values, and 'is' when you need to check if two references point to the same object in memory.

Are there any performance differences between them?

Yes, 'is' is generally faster because it checks for identity, which is a simpler operation than comparing values.