10주차 — 중급 종합 실습

# main.py — 통합 예시
import json, random
from pathlib import Path
from dataclasses import dataclass, field, asdict

PATH = Path("wordbook.json")

@dataclass
class Word:
    en: str
    ko: str
    correct: int = 0
    wrong: int = 0

def load():
    if not PATH.exists(): return []
    return [Word(**w) for w in json.loads(PATH.read_text(encoding="utf-8"))]

def save(words):
    PATH.write_text(json.dumps([asdict(w) for w in words], ensure_ascii=False, indent=2), encoding="utf-8")

def quiz(words):
    if not words: return
    sample = random.sample(words, min(5, len(words)))
    score = 0
    for i, w in enumerate(sample, 1):
        ans = input(f"[{i}/{len(sample)}] {w.en}? ").strip()
        if ans == w.ko:
            print("정답!"); w.correct += 1; score += 1
        else:
            print(f"오답. 정답: {w.ko}"); w.wrong += 1
    print(f"종합: {score}/{len(sample)}")

words = load()
while True:
    cmd = input("> ").strip()
    if cmd == "quit": save(words); break
    elif cmd.startswith("add "):
        en, ko = cmd[4:].split(":"); words.append(Word(en.strip(), ko.strip()))
    elif cmd == "list":
        for i, w in enumerate(words, 1):
            print(f"{i}. {w.en} = {w.ko} (○{w.correct}/×{w.wrong})")
    elif cmd == "quiz": quiz(words)

> add apple:사과
> add book:책
> quiz
[1/2] apple? 사과
정답!
[2/2] book? 가방
오답. 정답: 책
종합: 1/2
> quit

import json
from pathlib import Path
from datetime import date
from dataclasses import dataclass, asdict

PATH = Path("ledger.json")

@dataclass
class Entry:
    type: str
    amount: int
    category: str
    memo: str
    date: str

def load():
    if not PATH.exists(): return []
    return [Entry(**e) for e in json.loads(PATH.read_text(encoding="utf-8"))]

def save(entries):
    PATH.write_text(json.dumps([asdict(e) for e in entries], ensure_ascii=False, indent=2), encoding="utf-8")

def summary(entries):
    inc = sum(e.amount for e in entries if e.type == "수입")
    exp = sum(e.amount for e in entries if e.type == "지출")
    print(f"수입: {inc:,}원")
    print(f"지출: {exp:,}원")
    print(f"잔액: {inc - exp:,}원")
    print("\n[지출 카테고리]")
    cat = {}
    for e in entries:
        if e.type == "지출":
            cat[e.category] = cat.get(e.category, 0) + e.amount
    for k, v in cat.items():
        print(f"{k}: {v:,}원")

entries = load()
while True:
    cmd = input("> ").strip()
    if cmd == "quit": save(entries); break
    elif cmd == "summary": summary(entries)
    elif cmd.startswith("add "):
        t, amt, cat, *memo = cmd[4:].split()
        entries.append(Entry(t, int(amt), cat, " ".join(memo), str(date.today())))

> add 지출 5000 식비 점심
> add 수입 100000 월급
> summary
수입: 100,000원
지출: 5,000원
잔액: 95,000원

[지출 카테고리]
식비: 5,000원

import re, csv
from pathlib import Path

log_text = """INFO 2026-05-09 14:30 서버 시작
ERROR 2026-05-09 14:32 인증 실패
WARN 2026-05-09 14:34 느린 응답
ERROR 2026-05-09 14:35 DB 연결 끊김"""

pattern = re.compile(r"(\w+) \d{4}-\d{2}-\d{2} (\d{2}:\d{2}) (.+)")

rows = []
for line in log_text.splitlines():
    m = pattern.match(line)
    if m:
        rows.append(m.groups())

counts = {}
for level, _, _ in rows:
    counts[level] = counts.get(level, 0) + 1

with open("report.csv", "w", encoding="utf-8", newline="") as f:
    w = csv.writer(f)
    w.writerow(["level", "time", "message"])
    w.writerows(rows)

print(f"처리: {len(rows)}건")
print(", ".join(f"{k}: {v}" for k, v in counts.items()))
print("report.csv 저장됨")

처리: 4건
INFO: 1, ERROR: 2, WARN: 1
report.csv 저장됨