need help with data analysing with python and sqlite

[Hardcool]

Hi,
i have a problem creating a python program to analyzing a database that i created in sqlite from a csv file.
the database include 4 rows.
3 of them are good but the last one should not have multiple of same data but it does.

i need to write a program that fix this.

should i post any infos/document about my code and sql ?