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中级

生成抵押品到期预警房产证登记证到期

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中级参考 代码结构已给出,请填写 ____ 处
def solve():
    from pyodide.http import open_url
    clients_csv = open_url(____).read()
    loans_csv = open_url(____).read()
    collaterals_csv = open_url(____).read()
    guarantors_csv = open_url(____).read()
    collateral_valuations_csv = open_url(____).read()
    import sqlite3, pandas as pd
    from datetime import datetime
    from io import StringIO
    conn = sqlite3.connect(____)
    pd.read_csv(StringIO(____)).to_sql(____)
    result = pd.read_sql_query(____)
    ref = datetime(____, ____, ____)
    result['____'] = result['____'].apply(lambda x: (datetime.strptime(____) - ref).days)
    print(result[['____','____','____','____','____']].to_string(____))
    conn.close()

示例

输入
solve()
期望输出
loan_id collateral_type description expiry_date  days_to_expiry
       3     REAL_ESTATE      广州番禺厂房  2029-06-04            1069
       6     REAL_ESTATE      广州天河商铺  2030-01-14            1293
       4         VEHICLE 奥迪A6L 2024款  2030-10-04            1556
       8     REAL_ESTATE     重庆渝中商业楼  2031-01-24            1668
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