On Mon, Jul 26, 2010 at 10:59 AM, Robert Collins <[email protected]> wrote: > On Mon, Jul 26, 2010 at 11:53 AM, Jonathan Lange <[email protected]> wrote: >> On Sat, Jul 24, 2010 at 10:08 AM, Robert Collins >> <[email protected]> wrote: >> ... >>> I need input here - where do people use len(), why do they use len(), >>> what would the impact of nuking it be? We need this input to build >>> better interfaces - ones that scale and perform well. >>> >> >> As a webservice user, I use len() on collections to get an accurate >> count of the number of things I care about, so I can plot them. >> >> In fact, just the other day someone asked me to make a public burndown >> chart of the number of oops & timeout bugs in Launchpad. :P > > I think we can do something that will preserve your ability to do this > broadly but not impose as heavily on us. > > A few initial thoughts: > - you're graphing absolute figures, you could get a delta and sum an > arbitrary start point. E.g. if we said when you start the exercise > 'hundreds of oops bugs' and then called you back with each bug that > becomes an oops bug (or stops being one), you could track that > hundreds down and requery the aggregate estimate whenever you like. > - or we could provide a 'delta aggregate' which would be pretty > accurate (e.g. +4 today) even with the same precision limits the > overall aggregates have > - we could issue an API key for users we're willing to serve exact figures > to. > - we could provide a dedicated get-exact-figures interface, so that > people really have to choose it - and further to that we can document > our preferred interfaces. > > What do you think?
I prefer the last one. The first two would work, but seem a little like they would make webservice users jump through hoops. A major goal of the webservice is for it to be convenient and easy to use. jml _______________________________________________ Mailing list: https://launchpad.net/~launchpad-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~launchpad-dev More help : https://help.launchpad.net/ListHelp
