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How does the evaluation of conditions with AND and OR (short-circuit evaluation) work?

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Answer from AI

In Python, the and and or operators use short-circuit evaluation. This means that the expression is evaluated from left to right and stops as soon as the result is determined.

  • For and: if the first operand is false, the entire expression's result is false, and the second operand is not evaluated.
  • For or: if the first operand is true, the entire expression's result is true, and the second operand is not evaluated.

Example:

x = 0
if x != 0 and 10 / x > 1:
    print("Condition met")
# The second operand is not evaluated to avoid division by zero

Here, if x != 0 is false, then 10 / x > 1 is not evaluated, preventing an error.