script_21.py - Zip Two Lists Together

Code

#!/usr/bin/env python3
"""Zip two lists together"""

names = ["Alice", "Bob", "Charlie"]
ages = [25, 30, 35]

for name, age in zip(names, ages):
    print(f"{name} is {age} years old")

Explanation

Line 4-5: Two parallel lists - names is list of strings - ages is list of integers - Same length (3 elements each) - Related data at same indices

Line 7: for name, age in zip(names, ages): - zip() is built-in function that combines multiple iterables - Takes two (or more) iterables as arguments - Returns tuples pairing corresponding elements - Creates: ("Alice", 25), ("Bob", 30), ("Charlie", 35) - Tuple unpacking: name, age extracts both values - name gets element from first list (string) - age gets element from second list (integer) - Stops when shortest iterable is exhausted - Better than using indices: for i in range(len(names)): name=names[i], age=ages[i]

Line 8: print(f"{name} is {age} years old") - Both variables from tuple unpacking available - Combines related data from parallel lists