分析能耗趋势

def solve():
    from pyodide.http import open_url
    from io import StringIO
    import pandas as pd
    csv_data = open_url(____).read()
    df = pd.read_csv(StringIO(____))
    df['____'] = pd.to_datetime(____)
    df['____'] = df['____'].dt.month
    monthly = df.groupby(____)['____'].sum()
    for m, kwh in monthly.items():
        print(____)