Passing variable into sql query in python (sqlite3)

Question

I'm passing a value through into the query via a parameter. The problem is that when running the following code:

import sqlite3

def top10(restaurant):
    con = sqlite3.connect('example.db')
    cur = con.cursor()
    t = (restaurant,)
    cur.execute("SELECT * from orchard WHERE CUISINE_DESCRIPTION LIKE '%?%' ORDER BY SCORE;", t)
    return cur.fetchone()
print(top10("thai"))

I get the following error:

sqlite3.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 0, and there are 1 supplied.

I'm not sure how what's triggering it. Here's what runs successfully when I embed a value called thai instead of passing in the variable:

cur.execute("SELECT * from orchard WHERE CUISINE_DESCRIPTION LIKE '%thai%' ORDER BY SCORE;")

What could be wrong?

Answer 1

试试这个

cur.execute("SELECT * from orchard WHERE CUISINE_DESCRIPTION LIKE ? ORDER BY SCORE;", '%'+t+'%')