On 25 April 2017 at 23:30, Erik <pyt...@lucidity.plus.com> wrote:
> As I said above, it's not about the effort writing it out. It's about the
> effort (and accuracy) of reading the code after it has been written.
Well, personally I find all of the syntax proposals relatively
unreadable. So that's definitely a matter of opinion. And the
"explicit is better than implicit" principle argues for the longhand
form.
As has been pointed out, the case for += is more about incremented
complex computed cases than simply avoiding repeating a variable name
(although some people find that simpler case helpful, too - I'm
personally ambivalent).
> And as I also said above, decorators don't cut it anyway (at least not those
> proposed) because they blindly assign ALL of the arguments. I'm more than
> happy to hear of something that solves both of those problems without
> needing syntax changes though, as that means I can have it today ;)
That's something that wasn't clear from your original post, but you're
correct. It should be possible to modify the decorator to take a list
of the variable names you want to assign, but I suspect you won't like
that - it does reduce the number of times you have to name the
variables from 3 to 2, the same as your proposal, though.
class MyClass:
@auto_args('a', 'b')
def __init__(self, a, b, c=None):
pass
Paul
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