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Rotate API keys in Python by updating an .env template

Replace an old API key with a new one inside an .env template file, with a guard for missing keys.

import json
from pathlib import Path

def rotate_api_keys(env_template_path: Path, old_key: str, new_key: str) -> None:
    """Replace an old API key with a new one in an .env template file."""
    content = env_template_path.read_text()
    if old_key not in content:
        print(f"Error: '{old_key}' not found in {e…

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