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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-copy Python Dictionaries Copy Programming_Language draft conceptual
Copy Dictionaries
파이썬 딕셔너리 복사
B 0.9 2026-07-04 2026-07-04
python
programming
w3schools
dictionaries
copy
reference
https://www.w3schools.com/python/python_dictionaries_copy.asp

Python Dictionaries Copy

🎯 한 줄 통찰 (One-line insight)

dict2 = dict1 creates a reference, not a copy — exactly the same footgun as lists — so copy() or dict() must be used to get a truly independent dictionary. [S1]

🧠 핵심 개념 (Core concepts)

  • Reference trapdict2 = dict1 makes dict2 reference dict1; changes to one affect both. [S1]
  • copy() methodmydict = thisdict.copy() makes an independent copy. [S1]
  • dict() constructormydict = dict(thisdict) is an alternative copy method. [S1]

📖 세부 내용 (Details)

  • Copy via method: mydict = thisdict.copy(). [S1]
  • Copy via constructor: mydict = dict(thisdict). [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

소스에서 모순되는 정보는 발견되지 않음.

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — Python Lists Copy 챕터와 동일한 참조/복사 함정을 딕셔너리에도 그대로 적용해야 한다. [S1]

💻 코드 패턴 (Code patterns)

Independent copy via copy() (Python):

thisdict = {"brand": "Ford", "model": "Mustang", "year": 1964}
mydict = thisdict.copy()

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)

📚 출처 (Sources)

📝 변경 이력 (Change history)

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