On Fri, Sep 18, 2020, 8:34 AM Chris Angelico <[email protected]> wrote:
> On Fri, Sep 18, 2020 at 10:26 PM Ricky Teachey <[email protected]> wrote: > > > > On Fri, Sep 18, 2020, 8:17 AM Ricky Teachey <[email protected]> wrote: > >> > >> > >> Why not just grow a parse method on str that returns a dict and do it > this way? > >> > >> > >> q = "{a} {b}" > >> p = "1 2" > >> (a, b) = q.parse(p) > > > > > > Sorry that should have been: > > > > (a, b) = q.parse(p).values() > > > > You're using a dictionary as if it were a tuple. That's going to cause > a LOT of pain when someone does something like: > > a, b = "{b} {a}".parse(p).values() > > and they come out in the wrong order. Bad bad bad idea. Don't have > names if they're going to be pure lies. > > ChrisA > I'm not sure I understand the point you are making here since dictionaries have preserved order since python 3.6...? The same problem exists here: a, b = 2, 1 assert a == 1. # whoops got the order wrong
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