Re: [Python-Dev] Add a "transformdict" to collections

2013-09-10 Thread Andrea Corbellini 
On Tue, Sep 10, 2013 at 11:28 AM, Antoine Pitrou  wrote:
> Therefore I propose adding the general pattern. Simple example:
>
>>>> d = transformdict(str.lower)
>>>> d['Foo'] = 5
>>>> d['foo']
>5
>>>> d['FOO']
>5
>>>> list(d)
>['Foo']
>
> (case-insensitive but case-preserving, as the best filesystems are ;-))

Just a nitpick: if this example (or a similar one) gets into the
documentation, it would be better to replace str.lower() with
str.casefold().
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Re: [Python-Dev] PEP 457: Syntax For Positional-Only Parameters

2013-10-09 Thread Andrea Corbellini 
Sorry if I meddle, but wouldn't be better to include a module in the
standard library that provides functions and classes to help parsing
*args and **kwargs?

This way you can avoid defining a new syntax, new builtin objects and so on.
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