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10_Wiki/Topic_Programming/Topic_Python/Python_Args_Kwargs.md

@@ -0,0 +1,84 @@
+---
+id: python-args-kwargs
+title: "Python Args Kwargs"
+category: "Programming_Language"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["*args", "**kwargs", "arbitrary arguments", "파이썬 가변인자"]
+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", "functions", "args", "kwargs", "unpacking"]
+raw_sources: ["https://www.w3schools.com/python/python_args_kwargs.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[Python Args Kwargs]]
+
+# 참고: 원문 제목은 "Python *args and **kwargs"
+
+## 🎯 한 줄 통찰 (One-line insight)
+`*args` collects any number of positional arguments into a tuple, `**kwargs` collects any number of keyword arguments into a dict, and the same `*`/`**` syntax also works in reverse at the call site to unpack a list/dict back into separate arguments. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **`*args`** — a single `*` before a parameter collects unlimited positional arguments into a tuple. [S1]
+- **`**kwargs`** — double `**` collects unlimited keyword arguments into a dict. [S1]
+- **Ordering rule** — regular parameters, then `*args`, then `**kwargs`, in that order in the function signature. [S1]
+- **Unpacking a list with `*`** — `my_function(*numbers)` expands a list into positional arguments at the call site. [S1]
+- **Unpacking a dict with `**`** — `my_function(**person)` expands a dict into keyword arguments at the call site. [S1]
+
+## 🧩 추출된 패턴 (Extracted patterns)
+- **Same symbols, opposite direction** — `*`/`**` in a function DEFINITION collect scattered arguments into one tuple/dict; `*`/`**` in a function CALL do the reverse, expanding a tuple/dict into scattered arguments. [S1]
+
+## 📖 세부 내용 (Details)
+- Basic *args: `def my_function(*kids): print(kids[2]); my_function("Emil","Tobias","Linus")`. [S1]
+- *args as a tuple: `def my_function(*args): print(type(args))  # <class 'tuple'>`. [S1]
+- Regular + *args: `def my_function(greeting, *names): for name in names: print(greeting, name)`. [S1]
+- Basic **kwargs: `def my_function(**kid): print(kid["lname"]); my_function(fname="Tobias", lname="Refsnes")`. [S1]
+- Regular + **kwargs: `def my_function(username, **details): ...`. [S1]
+- All three together: `def my_function(title, *args, **kwargs): ...`. [S1]
+- Unpack a list into positional args: `my_function(*numbers)`. [S1]
+- Unpack a dict into keyword args: `my_function(**person)`. [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+소스에서 모순되는 정보는 발견되지 않음.
+
+## 🛠️ 적용 사례 (Applied in summary)
+현재 발견된 실제 적용 사례가 없습니다 — Decorators 챕터에서 `(*args, **kwargs)`가 임의의 함수를 감싸는 범용 wrapper 시그니처로 재사용된다. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+Collect-vs-unpack duality (Python):
+```python
+def my_function(a, b, c):
+    return a + b + c
+
+def collect(*args):
+    return args  # collects into a tuple
+
+numbers = [1, 2, 3]
+result = my_function(*numbers)  # unpacks list into args
+```
+
+## ✅ 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 Arguments]], [[Python Decorators]], [[Python Tuples Unpack]]
+- **참조 맥락:** 임의 개수 인자 처리의 표준 문법 — Decorators의 범용 wrapper 시그니처로 재사용.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — Python *args and **kwargs — https://www.w3schools.com/python/python_args_kwargs.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "Python *args and **kwargs" page (Astra wiki-curation, P-Reinforce v3.1 format).