[Python-Dev] Re: Comparing dict.values()

2019年7月24日 17:05:24 -0700

On 25/07/2019 00:09:37, David Mertz wrote:
I agree with Greg.
There are various possible behaviors that might make sense, but having `d.values() != d.values()` is about the only one I can see no sense in.
+1
This really feels like a good cade for reading a descriptive exception. If someone wants too compare `set(d.values())` that's great. If they want `list(d.values())`, also a sensible question. But the programmer should spell it explicitly.
So, a helpful error message including something like "Cannot compare dict.values directly, consider converting to sets / lists / sorted lists before comparing" ?
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