def OnClick(self, event):
    name = event.GetEventObject().GetLabelText()

    cursor= self.conn.execute("SELECT * FROM ELEMENT where SYMBOL==?", [name])

    elements = cursor.fetchall()

    print elements

    cursor= self.conn.execute("SELECT ATOMIC_NUMBER FROM ELEMENT where SYMBOL = ?", [name])

    numbers = cursor.fetchall()

    print numbers
    atomicnumber = numbers[0][0]

    cursor= self.conn.execute("SELECT MOL_NUMBER FROM LINK where ELEMENT_NUMBER = ?", [atomicnumber])

    mnumbers = cursor.fetchall()
    print mnumbers
    combinations = atomicnumber[0][0]
def intersect (*combination ):
    sets = iter(map(set, combinations))
    result = st.next()
    for s in sets:
         results = result.intersection (s)
    return result