On Wed, May 09, 2018 at 03:09:18PM +1000, Chris Angelico wrote: > On Wed, May 9, 2018 at 1:48 PM, Python <pyt...@bladeshadow.org> wrote: [much snippage...] > > flag = (spam == arg) > > That's not "side effects only".
Yeah, I'll chalk that up to posting too late in the evening after working too long a day... On Wed, May 09, 2018 at 12:46:07PM -0400, Dennis Lee Bieber wrote: > On Tue, 8 May 2018 22:48:52 -0500, Python <pyt...@bladeshadow.org> > > if spam == arg: > > Mis-typing that as > > if spam = arg: > > IS the problem -- you've just changed the value bound to spam, and will > then branch based upon the new value and not a comparison of values. Yes, I'm well aware. While I may have been momentarily confused about the side effects question, if you read my post I was clearly not confused about this. Nor do I think anyone else who pposted in the thread needed it explained. Responding to this further would essentially just require me to reiterate what I already wrote--I won't do that. I'll simply maintain that in my rather lenghty experience, this mistake has actually been rather rare and has to my knowledge *never* caused a support issue requiring a bug fix to production code in projects I've been associated with. It's a useful construction whose detriment has, IMO, been completely overblown. -- https://mail.python.org/mailman/listinfo/python-list
