---
id: python-strings-slicing
title: "Python Strings Slicing"
category: "Programming_Language"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["Slicing Strings", "파이썬 문자열 슬라이싱"]
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", "strings", "slicing"]
raw_sources: ["https://www.w3schools.com/python/python_strings_slicing.asp"]
applied_in: []
github_commit: ""
---

# [[Python Strings Slicing]]

## 🎯 한 줄 통찰 (One-line insight)
`b[start:end]` returns characters from `start` up to but not including `end`, and omitting either bound extends to the string's beginning or end respectively; negative indices count from the end. [S1]

## 🧠 핵심 개념 (Core concepts)
- **Slice syntax** — `b[start:end]`, end-exclusive. [S1]
- **Omit start** — `b[:5]` starts from the first character. [S1]
- **Omit end** — `b[2:]` goes to the end of the string. [S1]
- **Negative indexing** — counts backward from the end (`-1` is the last character). [S1]

## 📖 세부 내용 (Details)
- Basic slice (end-exclusive): `b = "Hello, World!"; print(b[2:5])`. [S1]
- Slice from start: `print(b[:5])`. [S1]
- Slice to end: `print(b[2:])`. [S1]
- Negative index slice: `print(b[-5:-2])` — gets "o" through "d" in "World!". [S1]

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

## 🛠️ 적용 사례 (Applied in summary)
현재 발견된 실제 적용 사례가 없습니다 — 리스트 슬라이싱에도 동일한 문법이 재사용된다. [S1]

## 💻 코드 패턴 (Code patterns)
Negative-index slice (Python):
```python
b = "Hello, World!"
print(b[-5:-2])
```

## ✅ 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 Strings]], [[Python Lists Access]]
- **참조 맥락:** 문자열/리스트 등 시퀀스 타입 전반에 재사용되는 슬라이싱 문법의 기초.

## 📚 출처 (Sources)
- [S1] W3Schools — Python - Slicing Strings — https://www.w3schools.com/python/python_strings_slicing.asp

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