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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 Python Tuples Programming_Language draft conceptual
파이썬 튜플
B 0.9 2026-07-04 2026-07-04
python
programming
w3schools
tuples
https://www.w3schools.com/python/python_tuples.asp

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",) # tuple vs thistuple = ("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)

📚 출처 (Sources)

📝 변경 이력 (Change history)

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