AHT20 save_entry method

aht20-step-2.py

# Save climate information locally
def save_entry(location, temperature, humidity):
    # Ensure the file exists before attempting to read
    if not os.path.isfile('entries.json'):
        pathlib.Path('entries.json').touch(exist_ok=False)
        entries = []
    else:
        # Load any old entries
        with open("entries.json", "r") as f:
            try:
                entries = json.loads(f.read())
            except Exception as e:
                print('Error: Parsing entries.json failed')
                raise e

    # Add this new entry to the list
    entries.append({
        'location': location,
        'temperature': temperature,
        'humidity': humidity,
        'date': datetime.datetime.now().isoformat()
    })

    # Save the list
    with open("entries.json", "w") as f:
        try:
            f.write(json.dumps(entries, indent=2))
        except Exception as e:
            print('Error: Saving entries.json failed')
            raise e