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

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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-loop	Python Dictionaries Loop	Programming_Language	draft	conceptual		Loop Dictionaries 파이썬 딕셔너리 반복		B	0.9	2026-07-04	2026-07-04			python programming w3schools dictionaries loop	https://www.w3schools.com/python/python_dictionaries_loop.asp

Python Dictionaries Loop

🎯 한 줄 통찰 (One-line insight)

A plain for x in dict loop yields KEYS by default, not values — to get values directly or both key and value together, you need .values() or .items() respectively, with items() enabling the two-variable unpacking form for x, y in dict.items(). [S1]

🧠 핵심 개념 (Core concepts)

• Default loop yields keys — for x in thisdict: print(x) prints key names. [S1]
• Get values via key — for x in thisdict: print(thisdict[x]). [S1]
• .values() loop — for x in thisdict.values(): print(x) iterates values directly. [S1]
• .keys() loop — for x in thisdict.keys(): print(x) — explicit equivalent of the default loop. [S1]
• .items() loop — for x, y in thisdict.items(): print(x, y) unpacks key and value together. [S1]

📖 세부 내용 (Details)

• Keys by default: for x in thisdict: print(x). [S1]
• Values via key lookup: for x in thisdict: print(thisdict[x]). [S1]
• Values directly: for x in thisdict.values(): print(x). [S1]
• Both key and value: for x, y in thisdict.items(): print(x, y). [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

소스에서 모순되는 정보는 발견되지 않음.

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — Nested Dictionaries 챕터에서 items() 순회가 중첩 구조 탐색에 재사용된다. [S1]

💻 코드 패턴 (Code patterns)

Loop through both keys and values (Python):

thisdict = {"brand": "Ford", "model": "Mustang", "year": 1964}
for x, y in thisdict.items():
    print(x, y)

✅ 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 Dictionaries Access, Python Dictionaries Nested, Python For Loops
• 참조 맥락: 딕셔너리 순회의 5가지 방식 — items()는 중첩 딕셔너리 순회에도 재사용된다.

📚 출처 (Sources)

• [S1] W3Schools — Python - Loop Dictionaries — https://www.w3schools.com/python/python_dictionaries_loop.asp

📝 변경 이력 (Change history)

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