On Thu, Jul 19, 2018, 08:47 Rhodri James <rho...@kynesim.co.uk> wrote:
> On 19/07/18 09:33, Antoine Pitrou wrote: > > There is a use case I sympathize with: the argument-is-None case. For > > that I would suggest a simpler form: "A else B" which would evaluate > > to A if A is not None, otherwise to B (parentheses may be mandatory). > > > > So e.g. one of the examples would read: > > > > def insort_right(a, x, lo=0, hi=None): > > # ... > > hi = hi else len(a) > > # ... > > Much as I would like a keyword, "else" is the wrong one. It implies we > are dealing with truthiness, which we aren't, and lays a subtle semantic > trap as a consequence. > > If anyone can think of a good word for "if it isn't None, otherwise", > I'd be all for it :-) > What about "nelse"? >
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