Re: Secondary list sorting comparison expression

2005-03-08 Thread David Pratt
Hi Raymond. I appreciate your reply. Yes, this is exactly what I was looking for. The syntax I had been trying to work out myself was not correct and not giving me the right thing. Many thanks for your help - this works just the way I wanted. David On Tuesday, March 8, 2005, at 03:46 PM, Raymo

Re: Secondary list sorting comparison expression

2005-03-08 Thread Raymond Hettinger
[David Pratt] > I am wanting to > extend this with a better comparison expression so that it would sort > on one key as primary, a second key as secondary sort , and maybe even > a third as tertiary. The simplest approach is to rely on Python's sort being stable. First sort on the tertiary key, t