---
id: python-tuples
title: "Python Tuples"
category: "Programming_Language"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["파이썬 튜플"]
duplicate_of: ""
source_trust_level: "B"
confidence_score: 0.9
created_at: 2026-07-04
updated_at: 2026-07-04
review_reason: ""
merge_history: []
tags: ["python", "programming", "w3schools", "tuples"]
raw_sources: ["https://www.w3schools.com/python/python_tuples.asp"]
applied_in: []
github_commit: ""
---

# [[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):
```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).
