Bug in python (Weird UnicodeDecodeError)

[dbri.tcc at gmail.com]

Hello

I am getting somewhat random UnicodeDecodeError messages in my program.

It is random in that I will be going through a pysqlite database of
records, manipulate
the results, and it will throw UnicodeDecodeError apparently without
regard
as to what data is being used.

For example I am reading in some book barcodes. These are 7 digit
strings. It processes a few thousand of these with no problem. But then
parway through the database results I get something like this:

    for item in list:
UnicodeDecodeError : 'utf8' codec can't decode bytes in position 26-28:
invalid data

I am not quite sure how u'2349350' is 26 bytes long. Maybe it is. But
another time it said something like 'position 129'.

Furthermore when I rearrange the order the database data is retrieved
(with Order By), it barfs on a different piece of data than it did
before. I cannot figure it out.

I thought at first it was the eval() function being loopy, so I wrote
my own 'evalfix' function that handled the limited set of data i was
using. Then the thing barfed in a completely different spot.

And then I added more data to the database, and it barfed it yet a new
spot. 

Any help is appreciated, thanks.