On Thu, May 19, 2011 at 8:15 AM, Joe Aquilina <j...@chem.com.au> wrote:
> I realised after I read your response that I probably hadn't included enough > information, partly due to my inexperience in Python and partly due to > haste on my part. > > AFter my original post, I had a little play in Python and was able to create > this tuple: > > [1, 2, 3, 4, 5] > > from which I was able to extract any item I wanted as an integer and work > with as I wanted. I am guessing that this is a 1-tuple. No, this is an array. However, an array and a tuple work similarly in many cases. A 1-tuple is a tuple with one element, so this is definitely not a 1-tuple. > It is when I do the fetchall() from the table, that I get the following: > > [(1,), (2,), (3,)] > > I don't know enough to know whether this is a 1-tuple or not. It is from > this tuple that I want to extract the 3 as an integer so that I can > increment it and save as an integer into the next row in the table. This again is an array, but this time the elements are tuples (indeed 1-tuples). To show you how to get the value 3 from this: >>> A = [(1,), (2,), (3,)] >>> A[2] (3,) >>> A[-1] (3,) >>> B = A[-1] >>> B (3,) >>> B[0] 3 >>> A[-1][0] 3 -- André Engels, andreeng...@gmail.com _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
