["python","sql"]
How can I use variables in an SQL statement in Python?

I have the following Python code: cursor.execute("INSERT INTO table VALUES var1, var2, var3,") where var1 is an integer. var2 and var3 are strings. How can I write the variable names without Python including them as part of the query text?
cursor.execute("INSERT INTO table VALUES (%s, %s, %s)", (var1, var2, var3)) Note that the parameters are passed as a tuple, (a, b, c). If you're passing a single parameter, the tuple needs to end with a comma, (a,). The database API does proper escaping and quoting of variables. Be careful not to use the string formatting operator (%), because It does not do any escaping or quoting. It is prone to uncontrolled string format attacks e.g. SQL injection.