I think you mean, newlist = [y for y in industrylist if y.cap < x]
otherwise you've got a list of caps, not a list of objects with the cap attribute. On Thu, 10 Mar 2005 12:10:31 -0800, James Stroud <[EMAIL PROTECTED]> wrote: > newlist = [y.cap for y in industrylist if y.cap < x] > > On Thursday 10 March 2005 12:00 pm, Leeds, Mark wrote: > > I have a structure in python that I think is a list > > > > with elements .Cap and .Ticker > > > > where Cap is a float and Ticker is string. > > > > > > > > So, I reference things like > > > > industrylist[i].cap and industrylist[i].ticker > > > > and this works fine. > > > > > > > > What I want to do is reduce the list > > > > so that it only keeps elements of the list > > > > for which the cap is less than x where x is known ? > > > > > > > > I think I need to use filter and lambda but > > > > i've looked in the documentation > > > > and I haven't been able to figure out > > > > how to use it. > > > > > > > > Apologies if this is a bad question. > > > > > > > > Thanks > > -- > James Stroud, Ph.D. > UCLA-DOE Institute for Genomics and Proteomics > Box 951570 > Los Angeles, CA 90095 > -- > http://mail.python.org/mailman/listinfo/python-list > -- Stephen Thorne Development Engineer, NetBoxBlue.com -- http://mail.python.org/mailman/listinfo/python-list
