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이전 재구성 작업에서 Dev/ 폴더가 누락되었던 것을 반영. - Dev/Topic_Programming(중첩 폴더, 78개)은 Dev 자체 최상위 폴더들 (Architecture/Conventions/Engineering_Intelligence 등)과 완전 중복이라 제거. - Dev 최상위 엔지니어링 지식 폴더(Architecture/Conventions/Engineering_Intelligence/ Failure_Library/Generalized_Principles/Language/Pattern_Catalog/Platform_Guides/ Subsystems, 77개)는 이미 Topic_Programming/Topic_Programming에 더 최신 버전이 존재해 중복 제거(고유 콘텐츠 1개는 예외 처리하여 이동 보존). - Dev의 W3Schools 언어 튜토리얼 폴더(Topic_C/CPP/CSS/CSharp/HOWTO/HTML/Java/ JavaScript/PHP/Python/SQL/W3CSS, 1201개)는 전부 Topic_Programming 하위로 이동. - 에이전트 운영 상태(.astra/docs)는 그대로 유지, 콘텐츠 폴더만 정리. - Topic_Programming 최종 문서 수: 2784 → 3985.
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3.3 KiB
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 | ||||||
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| python-tuples | Python Tuples | Programming_Language | draft | conceptual |
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B | 0.9 | 2026-07-04 | 2026-07-04 |
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Python Tuples
🎯 한 줄 통찰 (One-line insight)
A tuple is an ordered, immutable, duplicate-allowing collection written with round brackets — and a single-item tuple requires a trailing comma, or Python won't recognize it as a tuple at all. [S1]
🧠 핵심 개념 (Core concepts)
- Tuple — one of Python's 4 built-in collection types; ordered and unchangeable, written with
(). [S1] - Ordered — item order is fixed and persists. [S1]
- Unchangeable (immutable) — cannot change, add, or remove items after creation. [S1]
- Allows duplicates — indexed, so identical values can repeat. [S1]
- Single-item tuple gotcha —
("apple",)is a tuple;("apple")(no comma) is just a string in parentheses. [S1] tuple()constructor — alternative creation syntax. [S1]
🧩 추출된 패턴 (Extracted patterns)
- Trailing-comma requirement — the single most common tuple mistake is omitting the comma for a one-item tuple, silently producing a non-tuple instead of raising an error. [S1]
📖 세부 내용 (Details)
- Basic creation:
thistuple = ("apple", "banana", "cherry"). [S1] - Duplicates allowed:
thistuple = ("apple", "banana", "cherry", "apple", "cherry"). [S1] - Single-item tuple:
thistuple = ("apple",) # tuplevsthistuple = ("apple") # NOT a tuple. [S1] - Constructor:
thistuple = tuple(("apple", "banana", "cherry")). [S1]
⚖️ 모순 및 업데이트 (Contradictions & updates)
소스에서 모순되는 정보는 발견되지 않음.
🛠️ 적용 사례 (Applied in summary)
현재 발견된 실제 적용 사례가 없습니다 — List와 대비되는 불변 컬렉션으로서 이후 Access/Update/Unpack/Loop/Join/Methods 챕터의 기초가 된다. [S1]
💻 코드 패턴 (Code patterns)
Single-item tuple gotcha (Python):
thistuple = ("apple",) # a tuple
print(type(thistuple)) # <class 'tuple'>
thistuple = ("apple") # NOT a tuple
print(type(thistuple)) # <class 'str'>
✅ 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 Lists, Python Tuples Update, Python Tuples Unpack
- 참조 맥락: List의 불변 버전 — Set/Dictionary와 함께 4대 컬렉션 타입 중 하나.
📚 출처 (Sources)
- [S1] W3Schools — Python Tuples — https://www.w3schools.com/python/python_tuples.asp
📝 변경 이력 (Change history)
- 2026-07-04: Initial draft synthesized from the W3Schools "Python Tuples" page (Astra wiki-curation, P-Reinforce v3.1 format).