Lesson 19 of 55
9 mins readPython Tuples & NamedTuples
In Plain English
Tuples are lightweight, immutable sequences that allow returning multiple values from functions with zero allocation overhead. NamedTuples add named field access.
Deep Dive: How It Works
Tuples: (1, 2, "three") creates a tuple. Elements cannot be mutated after creation. Single-element tuples require a trailing comma: (1,).
Destructuring: a, b = (10, 20) unpacks tuple elements into separate variables.
NamedTuples: (name="Julia", version=1.10, speed="Fast") provides dot access (nt.name) while retaining stack-allocated immutability.
Core Rules to Remember
Zero Allocation Immutability: Tuples are allocated on the stack by the Julia compiler for ultra-fast access.
NamedTuples: Combine the speed of tuples with the clean field syntax of structs.
Live Interactive Example
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Python 3.12
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Output Console
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How it works: Destructuring unpacks the 3 values into min_val, max_val, avg_val.
Your Turn: Micro Challenge
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Micro Exercise
Construct a Point NamedTuple
- Create a NamedTuple `point = (x=3.5, y=7.2)`.
- Print `"Point: x=$(point.x), y=$(point.y)"`.
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Sandbox Output
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