How to delete a record from table?

I have a problem with deleting a record from my SQLite3 database:

conn = sqlite3.connect('databaza.db')
c = conn.cursor()
data3 = str(input('Please enter name: '))
mydata = c.execute('DELETE FROM Zoznam WHERE Name=?', (data3,))
conn.commit()
c.close

Everything is OK, no errors, but the delete function doesn't work!

Does anyone have an idea?