Hi Denis, Ok, stop for a moment.
Visit: http://pythontutor.com/visualize.html Specifically, here's your program: http://pythontutor.com/visualize.html#code=a%3D%5B1,%5B1,2%5D%5D%0Ab%3Da%0Aa%3D%5B1,%5B2,3%5D%5D%0Aa%5B0%5D%3D0%0Aa%5B1%5D%3D%5B0,0%5D&mode=display&cumulative=false&heapPrimitives=false&drawParentPointers=false&textReferences=false&showOnlyOutputs=false&py=2&curInstr=3 Step through it, and see if anything there makes sense. :P Try a few more simple programs there, including the examples discussed earlier on this thread. I have a feeling that your mental model of what's happening is not quite matching the machine, so the visualizer at http://pythontutor.com/visualize.html may help bridge that gap. Good luck! _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
