Python: Cannot concatenate str and NoneType objects

Question

sql = \"\"\"
        INSERT INTO [SCHOOLINFO] 
        VALUES(
            \'\"\"\" + self.accountNo + \"\"\"\', 
            \'\"\"\" + self.altName + \"\"\"\',
            


        

Answer 1

All these answers so far focus not on your problem but on what is right to do. Yes, yes - bind variables is better and safer. And yes, using % for formatting is faster and likely better.

But on your question what gives you that error - it must be that one of the values is None at some point, there is no other explanation. Just put a debug print in front of that, something like:

for v in 'accountNo altName address1 address2 city state zipCode phone1 phone2 fax contactName contactEmail prize_id shipping chairTempPass studentCount'.split():
    if getattr(self, v) is None:
        print 'PANIC: %s is None' % v

I bet it will print something at some point ;-)