Or if the context object needs different behavior, stick the "return value"
in an attribute like restaurant_choices.data.
On Sun, Oct 13, 2019, 2:56 PM David Mertz <me...@gnosis.cx> wrote:
> Why not just:
>
> with build_choices('Restaurant') as restaurant_choices :
> ...
>
> print(restaurant_choices)
>
> On Sun, Oct 13, 2019, 2:49 PM Steve Jorgensen <ste...@stevej.name> wrote:
>
>> Here's a more fleshed-out example of the kind of usage I have in mind.
>> Note that this does not require `with` to have any affect on variable
>> scope. The object returned from the context manager's __enter__ method is
>> all the context that is needed or wanted for this pattern.
>>
>> restaurant_choices = with build_choices('Restaurant') as cb:
>> # Get of nonexistent attr auto-generates matching entry.
>> cb.BURGER_KING
>> cb.FIVE_GUYS
>> # Returned value is a ChoiceItem that implements __mod__ to
>> return a
>> # new ChoiceItem instance w/ substituted label.
>> cb.MCDONALDS %= "McDonald's"
>>
>> print(restaurant_choices)
>> # RestaurantChoices(
>> # (
>> # ('BURGER_KING', 'Burger King'),
>> # ('FIVE_GUYS', 'Five Guys'),
>> # ('MCDONALDS', "McDonald's")))
>>
>> print(RestaurantChoices.BURGER_KING)
>> # Prints 'BURGER_KING'
>>
>> print(RestaurantChoices.value_labels['FIVE_GUYS'])
>> # Prints 'Five Guys'
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