On Nov 16 2016, Ryan Gonzalez <rymg19-re5jqeeqqe8avxtiumw...@public.gmane.org>
wrote:
> A = A + 1 ==> A += 1
>
>
> Similar problem: semantics change. If someone decided to be weird and have
> __add__ and __iadd__ do two different things, this would completely break
> that. Granted, that's a stupid idea to begin with, but it's still poor
> justification for the code breakage.
Aeh, that's used e.g. in numpy and most certaintly not weird.
x = np.range(5)
y = x**2
y_int = interpolate(x, y, copy=False)
y = y+1
print(y_int(3))
If you replace 'y = y + 1' with 'y += 1', then instead of creating a new
array and assigning it to y, you modify the existing array in place,
which will change the result of y_int(3). That is a feature.
Best,
-Nikolaus
--
GPG encrypted emails preferred. Key id: 0xD113FCAC3C4E599F
Fingerprint: ED31 791B 2C5C 1613 AF38 8B8A D113 FCAC 3C4E 599F
»Time flies like an arrow, fruit flies like a Banana.«
_______________________________________________
Python-ideas mailing list
Python-ideas@python.org
https://mail.python.org/mailman/listinfo/python-ideas
Code of Conduct: http://python.org/psf/codeofconduct/
