Selection based of variables issue

[nikos]

name = request.args.get('name')
        month = request.args.get('month')
        year = request.args.get('year')

        try:
                if '=' not in name + month + year:
                        cur.execute( '''SELECT * FROM jobs WHERE clientID = (SELECT id FROM clients WHERE name = %s) and MONTH(lastvisit) = %s and YEAR(lastvisit) = %s ORDER BY lastvisit DESC''', (name, month, year) )
                elif '=' not in name + year:
                        cur.execute( '''SELECT * FROM jobs WHERE clientID = (SELECT id FROM clients WHERE name = %s) and YEAR(lastvisit) = %s ORDER BY lastvisit DESC''', (name, year) )
                elif '=' not in month + year:
                        cur.execute( '''SELECT * FROM jobs WHERE MONTH(lastvisit) = %s and YEAR(lastvisit) = %s ORDER BY lastvisit DESC''', (month, year) )
                elif '=' not in year:
                        cur.execute( '''SELECT * FROM jobs WHERE YEAR(lastvisit) = %s ORDER BY lastvisit ASC''', year )
                else:

Hello, iam tryting to execute mysql queries based on python variables.
Problem is that only the first clause works as expected and not the rest.'=' means variables contains no value.

How can i make it work?

Request arguments come from a previous endpoint being executed that had a form within it to get the values. elif '=' not in month + year: and elif '=' not in month + year: and elif '=' not in name + year: does no return any results althoughtthey are present innto the database.