---
id: python-ternary-operator
title: "Python Ternary Operator"
category: "Programming_Language"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["Conditional Expression", "Shorthand If", "파이썬 삼항 연산자"]
duplicate_of: ""
source_trust_level: "B"
confidence_score: 0.88
created_at: 2026-07-04
updated_at: 2026-07-04
review_reason: ""
merge_history: []
tags: ["python", "programming", "w3schools", "ternary", "conditional"]
raw_sources: ["https://www.w3schools.com/python/python_ternary_operator.asp"]
applied_in: []
github_commit: ""
---

# [[Python Ternary Operator]]

## 🎯 한 줄 통찰 (One-line insight)
Python's "ternary operator" isn't a true operator but a conditional expression (`value_if_true if condition else value_if_false`) that can chain to replace a whole elif ladder in one line. [S1]

## 🧠 핵심 개념 (Core concepts)
- **Ternary operator** — assigns one value if a condition is true, another if false, in a single expression. [S1]
- **Not a real operator** — technically a conditional expression / shorthand if statement. [S1]
- **Chainable** — can replace elif chains by nesting multiple `if/else` clauses in one expression. [S1]

## 📖 세부 내용 (Details)
- Basic ternary: `num = 6; x = "WEEKEND!" if num > 5 else "Workday"`. [S1]
- Chained ternary (replacing elif): `x = "Fri" if num == 5 else "Sat" if num == 6 else "Sun" if num == 7 else "weekday"`. [S1]

## ⚖️ 모순 및 업데이트 (Contradictions & updates)
소스에서 모순되는 정보는 발견되지 않음.

## 🛠️ 적용 사례 (Applied in summary)
현재 발견된 실제 적용 사례가 없습니다 — 짧은 조건부 값 할당이 필요할 때 if/elif/else 블록 대신 자주 쓰인다. [S1]

## 💻 코드 패턴 (Code patterns)
Chained ternary replacing elif (Python):
```python
num = 6
x = "Fri" if num == 5 else "Sat" if num == 6 else "Sun" if num == 7 else "weekday"
print(x)
```

## ✅ 검증 상태 및 신뢰도
- **상태:** draft
- **검증 단계:** conceptual
- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
- **신뢰 점수:** 0.88
- **중복 검사 결과:** 신규 생성 (New discovery)

## 🔗 지식 그래프 (Knowledge Graph)
- **상위/루트:** [[Python Tutorial]]
- **관련 개념:** [[Python If Shorthand]], [[Python If Elif]], [[Python Operators]]
- **참조 맥락:** 짧은 조건부 값 할당의 표준 관용구 — elif 체인의 축약형.

## 📚 출처 (Sources)
- [S1] W3Schools — Python Ternary Operator — https://www.w3schools.com/python/python_ternary_operator.asp

## 📝 변경 이력 (Change history)
- 2026-07-04: Initial draft synthesized from the W3Schools "Python Ternary Operator" page (Astra wiki-curation, P-Reinforce v3.1 format).
