2nd/10_Wiki/Dev/Topic_Python/Python_Dictionaries_Add.md

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-dictionaries-add	Python Dictionaries Add	Programming_Language	draft	conceptual		Add Items 파이썬 딕셔너리 추가		B	0.88	2026-07-04	2026-07-04			python programming w3schools dictionaries add	https://www.w3schools.com/python/python_dictionaries_add.asp

Python Dictionaries Add

🎯 한 줄 통찰 (One-line insight)

Adding a new key is symmetric with changing an existing one — the same bracket-assignment and update() syntax works for both, since Python simply creates the key if it doesn't already exist. [S1]

🧠 핵심 개념 (Core concepts)

• New key via assignment — thisdict["color"] = "red" creates the key if absent. [S1]
• update() also adds — if the key given to update() doesn't exist yet, it's added rather than updated. [S1]

📖 세부 내용 (Details)

• Assignment-based add: thisdict["color"] = "red". [S1]
• Update-based add: thisdict.update({"color": "red"}). [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

소스에서 모순되는 정보는 발견되지 않음.

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — Change Dictionary Items 챕터와 문법이 완전히 동일하며, 키 존재 여부만 "수정 vs 추가"를 가른다. [S1]

💻 코드 패턴 (Code patterns)

Add a new key (Python):

thisdict = {"brand": "Ford", "model": "Mustang", "year": 1964}
thisdict["color"] = "red"

✅ 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 Dictionaries Change, Python Dictionaries Remove
• 참조 맥락: 딕셔너리에 새 키를 추가하는 방법 — Change Dictionary Items와 동일한 문법.

📚 출처 (Sources)

• [S1] W3Schools — Python - Add Dictionary Items — https://www.w3schools.com/python/python_dictionaries_add.asp

📝 변경 이력 (Change history)

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