--- id: python-strings-concatenate title: "Python Strings Concatenate" category: "Programming_Language" status: "draft" verification_status: "conceptual" canonical_id: "" aliases: ["String Concatenation", "파이썬 문자열 연결"] 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", "strings", "concatenation"] raw_sources: ["https://www.w3schools.com/python/python_strings_concatenate.asp"] applied_in: [] github_commit: "" --- # [[Python Strings Concatenate]] ## 🎯 한 줄 통찰 (One-line insight) The `+` operator concatenates strings, but adds no separator automatically — a space or other separator must be inserted explicitly between operands. [S1] ## 🧠 핵심 개념 (Core concepts) - **`+` operator** — combines (concatenates) two strings. [S1] - **No automatic spacing** — concatenation is literal; a manual `" "` must be added between words. [S1] ## 📖 세부 내용 (Details) - Basic concatenation: `a = "Hello"; b = "World"; c = a + b; print(c) # "HelloWorld"`. [S1] - With explicit space: `c = a + " " + b # "Hello World"`. [S1] ## ⚖️ 모순 및 업데이트 (Contradictions & updates) 소스에서 모순되는 정보는 발견되지 않음. ## 🛠️ 적용 사례 (Applied in summary) 현재 발견된 실제 적용 사례가 없습니다 — f-string(String Format 챕터)이 등장하기 전까지의 기본 문자열 결합 방식이다. [S1] ## 💻 코드 패턴 (Code patterns) Concatenate with an explicit space (Python): ```python a = "Hello" b = "World" c = a + " " + b print(c) ``` ## ✅ 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 Strings Format]], [[Python Output Variables]] - **참조 맥락:** f-string 이전의 기본 문자열 결합 방식 — 더 정교한 포매팅은 Strings Format 참조. ## 📚 출처 (Sources) - [S1] W3Schools — Python - String Concatenation — https://www.w3schools.com/python/python_strings_concatenate.asp ## 📝 변경 이력 (Change history) - 2026-07-04: Initial draft synthesized from the W3Schools "Python - String Concatenation" page (Astra wiki-curation, P-Reinforce v3.1 format).