What is the difference between operator precedence and associativity in Python?

What is the difference between operator precedence and associativity in Python?

Operator precedence determines the order in which operations are performed, while associativity defines the direction of evaluation.

Can you give me an example of how precedence works in an expression?

Sure! In the expression 3 + 4 * 5, multiplication has higher precedence, so it evaluates as 3 + (4 * 5), resulting in 23.

What about associativity? How does it affect expressions?

Associativity determines how operators of the same precedence are grouped. For example, in 5 - 3 - 2, subtraction is left associative, so it evaluates as (5 - 3) - 2, resulting in 0.

Are there any operators in Python that have different associativity?

Yes, the exponentiation operator ** is right associative, so 2 ** 3 ** 2 evaluates as 2 ** (3 ** 2), which is 512.