找出不及格学员并发送预警

def solve():
    from pyodide.http import open_url
    instructors_csv = open_url(____).read()
    courses_csv = open_url(____).read()
    students_csv = open_url(____).read()
    enrollments_csv = open_url(____).read()
    assignments_csv = open_url(____).read()
    submissions_csv = open_url(____).read()
    import sqlite3
    import pandas as pd
    from io import StringIO

    conn = sqlite3.connect(____)
    pd.read_csv(StringIO(____)).to_sql(____)
    pd.read_csv(StringIO(____)).to_sql(____)

    result = pd.read_sql_query(____)
    print(result.to_string(____))
    conn.close()