def showAll(self):
		self.conn.commit()
		cur = self.conn.cursor()
		cur.execute("SELECT * FROM Domains")
		print cur.fetchall()
		cur.execute("SELECT * FROM Websites")
		print cur.fetchall()
def dfs_print(root):
        if root is None:
            return
        dfs_print(root.left)
        print(str(root.key) + ' ', end='')
        dfs_print(root.right)