local variable 'servers' referenced before assignment

Question

def websvc(currency):
    db = MySQLdb.connect("localhost", "root", "aqw", "PFE_Project")
    cursor = db.cursor()
    sql =          


        

Answer 1

I see the problem now you have edited it to add the missing parts. It's the exception handler.

If you have an error after try and before servers=[] it will jump to the except clause, then see return servers and fail.

You might want to use a list(), instead of using a dict() to emulate a list ...