When writing conditions in Python, you often need to compare multiple values. Instead of using multiple logical operators, Python offers a cleaner and more intuitive way to perform comparisons — chained comparisons.
Chained comparison allows you to combine multiple comparison operations in a single, readable expression, much like mathematical notation. For example:
x = 10 print(5 < x < 20) # True
This statement is equivalent to:
(5 < x) and (x < 20)
Python evaluates 5 < x < 20 as a sequence of two conditions (5 < x and x < 20) joined by an and operator, making the code more concise and readable.
Benefits of Chained Comparison
Improves readability — Expressions look more natural and resemble mathematical notation.
Reduces redundancy — No need to repeat variables in multiple conditions.
Enhances performance — Python evaluates expressions from left to right and stops early if a condition fails.
