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From: Random832 <random832@fastmail.com>
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Subject: Re: Suggestion: make sequence and map interfaces more similar
Date: Tue, 29 Mar 2016 23:38:37 -0400
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On Tue, Mar 29, 2016, at 20:56, Chris Angelico wrote:
> The map contract is this:
> 
> x = StrangeDict()
> x[123] = 456
> ...
> assert x[123] == 456
> 
> Your mapping does violate the map contract.

So, you can put *anything* in that "..."?

x = dict()
x[123] = 456
x[123] = 789
assert x[123] == 456

dict violates the map contract.