Q33: How does the Walrus Operator (:=) function?
The Assignment Expression operator (:=) assigns values to variables inside an expression (e.g. inside if statements or while conditions), eliminating redundant calculation calls.
Walrus Operator in While Loop
# Inline assignment within while condition stream
while (chunk := file.read(1024)):
process(chunk)💡 The walrus operator assigns chunk and checks truthiness in a single unified line.
Key Takeaways
- Assigns and evaluates values inline within expressions.
- Reduces code duplication inside loops and conditionals.
Knowledge Check
In which Python version was the assignment expression (walrus operator :=) introduced?