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1. Amr Hassan Python

   Did you guys know that default args (including mutables) are created on definition? I thought I was tripping. http://goo.gl/I3WB !python

   Tuesday, 13-Jul-10 02:13:45 UTC from pino
   • Roberto Alsina

     @amrhassan yes, that's why [] as a default value for an argument sucks :-)

     Tuesday, 13-Jul-10 02:19:23 UTC
   • Fede Heinz Roberto Alsina

     @ralsina [] or any list, for that matter? It's Fortran redefining

     Tuesday, 13-Jul-10 02:43:43 UTC
   • Fede Heinz Roberto Alsina

     @ralsina [] or any list, for that matter? It's Fortran redefining "4" all over again?

     Tuesday, 13-Jul-10 02:43:59 UTC
   • Roberto Alsina Fede Heinz

     @fheinz any mutable type instance, really.

     Tuesday, 13-Jul-10 02:54:25 UTC
   • Fede Heinz Roberto Alsina

     @ralsina kinda fun, actually: http://is.gd/dpPsP

     Tuesday, 13-Jul-10 03:45:30 UTC
   • Roberto Alsina Fede Heinz

     @fheinz once you know about it, you just use None instead :-)

     Tuesday, 13-Jul-10 03:54:05 UTC