So verwenden Sie Python mysqldb, um viele Zeilen gleichzeitig einzufügen

Aus dem MySQLdb-Benutzerhandbuch :

c.executemany(
      """INSERT INTO breakfast (name, spam, eggs, sausage, price)
      VALUES (%s, %s, %s, %s, %s)""",
      [
      ("Spam and Sausage Lover's Plate", 5, 1, 8, 7.95 ),
      ("Not So Much Spam Plate", 3, 2, 0, 3.95 ),
      ("Don't Wany ANY SPAM! Plate", 0, 4, 3, 5.95 )
      ] )

also in deinem Fall:

c.executemany("insert into T (F1,F2) values (%s, %s)",
    [('a','b'),('c','d')])