Tuple unpacking is Python assignment syntax that extracts elements from an iterable into separate variables. It is especially useful when enumerate returns an index–value pair or when str.split produces the fields needed by a calculation. section 2.15 section 7.7
Capture an index and character
for index, one_letter in enumerate('abcd'): print(f'{index}: {one_letter}') Each iteration supplies two values, assigned directly to index and one_letter. section 2.15
Apply the same technique when processing structured input:
- Split an expression and assign its operator and operands: op, first_s, second_s = to_solve.split(). section 7.7
- Use enumerate inside comprehensions to bind an index and character, optionally starting the index at 1. section 8.31
- Control uncertain input with split(maxsplit=3), which preserves the remaining text in the final element. section 7.7
