The grammar and what it represents is defined at https://docs.python.org/3/reference/expressions.html#expression-lists
Regards On Sep 16, 2016 9:59 PM, "Peng Yu" <pengyu...@gmail.com> wrote: > OK. But it is documented somewhere in python doc? > > On Fri, Sep 16, 2016 at 9:48 PM, Lawrence D’Oliveiro > <lawrenced...@gmail.com> wrote: > > On Saturday, September 17, 2016 at 2:05:49 PM UTC+12, Peng Yu wrote: > >> x, y = y, x > > > > It’s just syntactic sugar for > > > > (x, y) = (y, x) > > -- > > https://mail.python.org/mailman/listinfo/python-list > > > > -- > Regards, > Peng > -- > https://mail.python.org/mailman/listinfo/python-list > -- https://mail.python.org/mailman/listinfo/python-list
