2nd/10_Wiki/Dev/Topic_Python/Python_Modules.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-modules	Python Modules	Programming_Language	draft	conceptual		import statement 파이썬 모듈		B	0.9	2026-07-04	2026-07-04			python programming w3schools modules import	https://www.w3schools.com/python/python_modules.asp

Python Modules

🎯 한 줄 통찰 (One-line insight)

A module is just a .py file, imported via import and accessed with dot notation (module.function) — except when using from module import x, which drops the module prefix entirely. [S1]

🧠 핵심 개념 (Core concepts)

• Module — a code library; a file containing functions (and variables) meant to be reused. [S1]
• Creating a module — just save code in a .py file. [S1]
• Using a module — import mymodule; mymodule.greeting("Jonathan"). [S1]
• Module variables — modules can hold variables of any type (dicts, lists, objects), accessed the same dot-notation way. [S1]
• Aliasing — import mymodule as mx renames the module reference. [S1]
• Built-in modules — Python ships several ready to import, e.g. platform. [S1]
• dir() — lists all names (functions/variables) defined in a module, including custom ones. [S1]
• from ... import ... — imports only specific parts; when used, do NOT prefix with the module name at the call site. [S1]

🧩 추출된 패턴 (Extracted patterns)

• from import changes the access syntax — import mymodule; mymodule.person1 vs. from mymodule import person1; person1 — mixing these two styles by prefixing after a from import is a common beginner mistake. [S1]

📖 세부 내용 (Details)

• Create a module (mymodule.py): def greeting(name): print("Hello, " + name). [S1]
• Use it: import mymodule; mymodule.greeting("Jonathan"). [S1]
• Alias: import mymodule as mx; a = mx.person1["age"]. [S1]
• Built-in module: import platform; x = platform.system(). [S1]
• List module contents: import platform; x = dir(platform). [S1]
• Partial import: from mymodule import person1; print(person1["age"]). [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

소스에서 모순되는 정보는 발견되지 않음.

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — Python PIP 챕터에서 서드파티 모듈을 설치해 동일한 import 방식으로 사용하는 과정으로 이어진다. [S1]

💻 코드 패턴 (Code patterns)

Aliased import (Python):

import mymodule as mx
a = mx.person1["age"]
print(a)

✅ 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 PIP, Python Math, Python JSON
• 참조 맥락: 코드 재사용의 기본 단위 — 이후 math/json/re 등 표준 모듈 챕터의 전제.

📚 출처 (Sources)

• [S1] W3Schools — Python Modules — https://www.w3schools.com/python/python_modules.asp

📝 변경 이력 (Change history)

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