Does Python Support Short-Circuiting in Boolean Expressions?

Support for Short-Circuiting in Python

Q: Does Python support short-circuiting in boolean expressions?

A: Yes.

Python supports short-circuiting for both the and and or operators, as documented in the official documentation.

Short-circuiting is a behavior in which the evaluation of a boolean expression stops as soon as the result is determined. For instance, in the expression:

x = a and b

If the value of a is False, the expression a and b is immediately evaluated to False without evaluating b. This optimization saves time and resources, especially when b is computationally expensive.

Similarly, in the expression:

y = a or b

If the value of a is True, the expression a or b is immediately evaluated to True without evaluating b.

This short-circuiting behavior makes Python code more efficient and allows for more concise and clear boolean logic. It is a powerful tool that can be leveraged to enhance the performance and readability of Python programs.

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