2nd/10_Wiki/Dev/Topic_Python/Python_Tuples_Unpack.md

id, title, category, status, verification_status, canonical_id, aliases, duplicate_of, source_trust_level, confidence_score, created_at, updated_at, review_reason, merge_history, tags, raw_sources, applied_in, github_commit

id	title	category	status	verification_status	canonical_id	aliases	duplicate_of	source_trust_level	confidence_score	created_at	updated_at	review_reason	merge_history	tags	raw_sources	applied_in	github_commit
python-tuples-unpack	Python Tuples Unpack	Programming_Language	draft	conceptual		Unpack Tuples Packing Asterisk unpacking 파이썬 튜플 언패킹		B	0.9	2026-07-04	2026-07-04			python programming w3schools tuples unpacking	https://www.w3schools.com/python/python_tuples_unpack.asp

Python Tuples Unpack

🎯 한 줄 통찰 (One-line insight)

When variable count doesn't match tuple length, prefixing one variable with * collects all the "extra" values into a list — and that starred variable doesn't have to be last; it absorbs exactly as many items as needed to satisfy the other variables. [S1]

🧠 핵심 개념 (Core concepts)

• Packing — assigning multiple values to a tuple, e.g. fruits = ("apple", "banana", "cherry"). [S1]
• Unpacking — extracting a tuple's values back into separate variables: (green, yellow, red) = fruits. [S1]
• Count must match — the number of variables must equal the number of values, unless using *. [S1]
• Asterisk (*) collector — when variables < values, one starred variable name collects the remainder AS A LIST. [S1]
• Asterisk in the middle — if * is on a variable that isn't last, Python still fills the OTHER variables first/last as needed, giving the starred variable whatever remains. [S1]

📖 세부 내용 (Details)

• Basic unpack (counts match): fruits = ("apple", "banana", "cherry"); (green, yellow, red) = fruits. [S1]
• Starred unpack, trailing collector: fruits = ("apple","banana","cherry","strawberry","raspberry"); (green, yellow, *red) = fruits → red = ['cherry', 'strawberry', 'raspberry']. [S1]
• Starred unpack, middle collector: fruits = ("apple","mango","papaya","pineapple","cherry"); (green, *tropic, red) = fruits → green='apple', tropic=['mango','papaya','pineapple'], red='cherry'. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

소스에서 모순되는 정보는 발견되지 않음.

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — Python Assign Multiple Values 챕터에서 이미 선행 소개된 언패킹 개념이 여기서 별표 문법으로 확장된다. [S1]

💻 코드 패턴 (Code patterns)

Starred unpacking in the middle position (Python):

fruits = ("apple", "mango", "papaya", "pineapple", "cherry")
(green, *tropic, red) = fruits
print(green)   # apple
print(tropic)  # ['mango', 'papaya', 'pineapple']
print(red)     # cherry

✅ 검증 상태 및 신뢰도

• 상태: draft
• 검증 단계: conceptual
• 출처 신뢰도: B (W3Schools — widely used educational reference, not a primary standards body)
• 신뢰 점수: 0.90
• 중복 검사 결과: 신규 생성 (New discovery)

🔗 지식 그래프 (Knowledge Graph)

• 상위/루트: Python Tutorial
• 관련 개념: Python Assign Multiple Values, Python Args Kwargs, Python Tuples
• 참조 맥락: 튜플/리스트 언패킹의 표준 문법 — 함수 가변 인자(*args)와 개념적으로 연결된다.

📚 출처 (Sources)

• [S1] W3Schools — Python - Unpack Tuples — https://www.w3schools.com/python/python_tuples_unpack.asp

📝 변경 이력 (Change history)

• 2026-07-04: Initial draft synthesized from the W3Schools "Python - Unpack Tuples" page (Astra wiki-curation, P-Reinforce v3.1 format).