Method Chaining

[Ethan Furman]

On 06/19/2016 04:56 AM, Joonas Liik wrote:
> On 18 June 2016 at 23:47, Ethan Furman wrote:
>> On 06/18/2016 07:05 AM, Joonas Liik wrote:

>>> the leading dot does not resolve the ambiguity that arises from:
>>>
>>> with ob_a:
>>>       with ob_b:
>>>           .attr_c = 42 # which object are we modifying right now?
>>
>>
>> The innermost one.  Why would it be anything else?
>
> What if ob_b does not have attribute attr_c but ob_a does?

Good question.  I would say that _only_ the innermost with object is 
searched, and if it doesn't have the requested attribute an 
AttributeError is raised.  Otherwise, as you say, it could be a 
nightmare to maintain.

--
~Ethan~