docs(10_Wiki): Dev 폴더 누락분 반영 — Topic_Programming으로 통합

이전 재구성 작업에서 Dev/ 폴더가 누락되었던 것을 반영.

- Dev/Topic_Programming(중첩 폴더, 78개)은 Dev 자체 최상위 폴더들
  (Architecture/Conventions/Engineering_Intelligence 등)과 완전 중복이라 제거.
- Dev 최상위 엔지니어링 지식 폴더(Architecture/Conventions/Engineering_Intelligence/
  Failure_Library/Generalized_Principles/Language/Pattern_Catalog/Platform_Guides/
  Subsystems, 77개)는 이미 Topic_Programming/Topic_Programming에 더 최신 버전이
  존재해 중복 제거(고유 콘텐츠 1개는 예외 처리하여 이동 보존).
- Dev의 W3Schools 언어 튜토리얼 폴더(Topic_C/CPP/CSS/CSharp/HOWTO/HTML/Java/
  JavaScript/PHP/Python/SQL/W3CSS, 1201개)는 전부 Topic_Programming 하위로 이동.
- 에이전트 운영 상태(.astra/docs)는 그대로 유지, 콘텐츠 폴더만 정리.
- Topic_Programming 최종 문서 수: 2784 → 3985.
This commit is contained in:
Antigravity Agent
2026-07-05 00:39:13 +09:00
parent 9148c358d0
commit e9cbf23ab5
1356 changed files with 0 additions and 12831 deletions
@@ -0,0 +1,72 @@
---
id: python-sets
title: "Python Sets"
category: "Programming_Language"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["파이썬 셋"]
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", "sets"]
raw_sources: ["https://www.w3schools.com/python/python_sets.asp"]
applied_in: []
github_commit: ""
---
# [[Python Sets]]
## 🎯 한 줄 통찰 (One-line insight)
A set is Python's unordered, unindexed, no-duplicates collection — and its duplicate detection treats True/1 as the same value, and False/0 as the same value, since equality (not just type) determines duplication. [S1]
## 🧠 핵심 개념 (Core concepts)
- **Set** — one of Python's 4 built-in collection types; unordered, "unchangeable"* (items can't be modified, but can be added/removed), unindexed, written with `{}`. [S1]
- **Unordered** — items have no defined order and cannot be accessed by index or key. [S1]
- **No duplicates** — sets silently drop duplicate values on creation. [S1]
- **`True`/`1` and `False`/`0` collapse** — these pairs are treated as the same value for duplicate purposes. [S1]
- **`set()` constructor** — alternative creation syntax. [S1]
## 🧩 추출된 패턴 (Extracted patterns)
- **Value-equality-based dedup, not type-based** — `{True, 1, 2}` collapses to `{True, 2}` (or `{1, 2}`) because `True == 1` in Python, illustrating that set uniqueness follows `==`, not `type()`. [S1]
## 📖 세부 내용 (Details)
- Basic creation: `thisset = {"apple", "banana", "cherry"}`. [S1]
- Duplicate dropped: `thisset = {"apple", "banana", "cherry", "apple"}` → duplicate "apple" ignored. [S1]
- True/1 collapse: `thisset = {"apple", "banana", "cherry", True, 1, 2}`. [S1]
- Constructor: `thisset = set(("apple", "banana", "cherry"))`. [S1]
## ⚖️ 모순 및 업데이트 (Contradictions & updates)
소스에서 모순되는 정보는 발견되지 않음. "unchangeable"이라는 표현 자체가 각주(*)로 "제거·추가는 가능하다"고 완화됨. [S1]
## 🛠️ 적용 사례 (Applied in summary)
현재 발견된 실제 적용 사례가 없습니다 — Set 연산(union/intersection/difference)은 이후 Join Sets 챕터에서 본격적으로 다뤄진다. [S1]
## 💻 코드 패턴 (Code patterns)
True/1 duplicate collapse (Python):
```python
thisset = {"apple", "banana", "cherry", True, 1, 2}
print(thisset) # True and 1 collapse to one value
```
## ✅ 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 Lists]], [[Python Frozenset]], [[Python Sets Join]]
- **참조 맥락:** 4대 컬렉션 타입 중 하나 — 고유값 집합 연산이 필요할 때 사용.
## 📚 출처 (Sources)
- [S1] W3Schools — Python Sets — https://www.w3schools.com/python/python_sets.asp
## 📝 변경 이력 (Change history)
- 2026-07-04: Initial draft synthesized from the W3Schools "Python Sets" page (Astra wiki-curation, P-Reinforce v3.1 format).