vim python omni completion

example.py

#!/usr/bin/env python
# encoding: utf-8


import sqlite3
import sys

con = None

try:
    con = sqlite3.connect('test.db')

    # does vim python omni complete can complete 'cursor()' after 'con' ???
    cur = con.cursor()
    cur.execute('SELECT SQLITE_VERSION()')

    data = cur.fetchone()

    print("SQLite version is %s " % data)
except sqlite3.Error as e:
    print("Error ", e)
    sys.exit(1)
finally:
    if con:
        con.close()