Using python and postgres, variables within execute function?

Question

I had a question regarding the usage of variables inside a python function which accesses the PostgreSQL server. For example, the following:

def delete():
           


        

Answer 1

To pass identifiers use psycopg2.extensions.AsIs

from psycopg2.extensions import AsIs

def update(table_name, var_1, var_2):
    cur.execute("""
        UPDATE %s
        SET %s = 'Y'
        WHERE %s = 'John';
        """,
        (AsIs(table_name), AsIs(var_1), AsIs(var_2))
    )