How to get single cell value from postgre sql table using python?

Question

Python

when querying 'SELECT access FROM table WHERE id = 12345;' to the database through python and calling the fetchone() function, 2 values ​​are returned: field values ​​and an empty value. How to make it so that only the value of the cell is returned when querying without using such a fetchone () [0] construct

Answer 1

There is no second empty field there, read what fetchone returns, then to the basics of python and how to work with tuples.
PS for fetchone () [0] to kick until enlightenment.