PEP 448 extended Python’s unpacking operators (* and **) in Python 3.5, allowing multiple unpackings in function calls and enabling unpacking directly within list, tuple, set, and dictionary literals. This eliminates verbose workarounds and makes code more concise and readable.
PEP 308 introduced conditional expressions in Python 2.5 with the syntax value_if_true if condition else value_if_false, providing a concise way to assign values based on conditions.
PEP 572 introduced the walrus operator (:=) in Python 3.8, allowing assignment within expressions to reduce code duplication and improve readability.
The walrus operator gets its name from its resemblance to a walrus face - the colon represents the eyes and the equals sign represents the tusks!