[Tutor] Re: Unexpected results with list

[Michael Long]

>>for newRecord in newRS:
>>         newPk = ''
>>         for nKey in newKeys:
>>                 newPk = newPk + str(newRecord[nKey]).strip()
>>         newKeyRS.append((newPk, newRecord))
>>         if newPk[:5]=='15000': print (newPk, newRecord)
>
>
> I think I might write this as newPk.startswith('15000')

That syntax is much more intuitive.

>
> It would be very helpful to have a full working example to
> play with...
>
The entire piece involves connecting to 2 diffent databases and retrieving
recordsets which are to be compared. This statement "if newPk[:5]=='15000'" is
present to filter the resultset printed for debugging purposes.

I have found the offending code but do not understand what is going on. When you
run the following snippet it only print '150003' and '150005'. I would be grateful
for an explaination of this behavior.

newKeyRS = ['150003', '150004', '150005', '150006', '15007', '15008']

for newRecord in newKeyRS:
        if newRecord.startswith('15000'): print newRecord
        newKeyRS.remove(newRecord)