# Good
def process(items: list[str]) -> dict[str, int]:
    ...

# Avoid (Python 3.9 스타일)
from typing import List, Dict
def process(items: List[str]) -> Dict[str, int]:
    ...

# 1. 표준 라이브러리
import os
from pathlib import Path

# 2. 서드파티
import boto3
from rich.console import Console

# 3. 로컬
from core.parallel import get_client, parallel_collect

def analyze_resource(resource_id: str, region: str) -> dict:
    """리소스 분석 수행.

    Args:
        resource_id: AWS 리소스 ID
        region: AWS 리전

    Returns:
        분석 결과 딕셔너리
    """

# Good
name = f"resource-{resource_id}"

# Avoid
name = "resource-{}".format(resource_id)
name = "resource-%s" % resource_id

# Good
try:
    client.describe_instances()
except ClientError as e:
    if e.response['Error']['Code'] == 'AccessDenied':
        logger.warning("권한 부족")
    raise

# Avoid
try:
    client.describe_instances()
except Exception:
    pass

# Good
active = [i for i in instances if i['State'] == 'running']

# 복잡한 경우 generator 사용
def get_active():
    for instance in instances:
        if is_valid(instance) and is_active(instance):
            yield instance

with open(file_path, 'r') as f:
    data = f.read()

MAX_RETRIES = 3
DEFAULT_REGION = "ap-northeast-2"

ruff check cli core plugins --fix
ruff format cli core plugins
mypy cli core plugins