[python-uk] TDD stuff in London, next two weeks (and list comprehension scoping)

[Harry Percival]

I had the problem outside of a class body, in a normal function...

(of course I can't build a minimal repro now.  working on it.)


On 30 May 2014 15:37, Tim Diggins <tim at red56.co.uk> wrote:

> Harry
> *//excursus on the moan *
> The problem with  seems to be with scopes vs namespace differentiation
> rather than comprehensions (though I haven't *actually* tried this in
> python 3). So this problem only should occur in class bodies. And doing
> heavy lifting stuff like comprehensions in a class body is a bit dangerous,
> and you'd be better off doing it "properly" with a bit of metaprogramming
>  or wrapping it in function (which you could actually call in the body of
> the module after class definition and then modify the class after creation)
>
>
>
>
> On 30 May 2014 15:01, Harry Percival <harry.percival at gmail.com> wrote:
>
>> Hi Uk-Pythoneers!
>>
>> *(with apologies to the wise ones amongst us who have chosen to live well
>> away from the Big Smoke)*
>>
>> I'm involved in a couple of Python/TDD things in the next couple of
>> weeks, both free to attend:
>>
>>
>> Outside-In TDD and Test Isolation:
>> https://skillsmatter.com/meetups/6410-outside-in-tdd-and-test-isolation-how-to-use-the-pain-of-horrible-mocks-to-drive-better-design
>> (all about testing, isolation, mocking, and the pains thereof... it may
>> to provide some insight into the #TDDisDead / DHH controversy, if you've
>> been following that)
>>
>> Introduction to TDD workshop with Andrea Crotti:
>> https://skillsmatter.com/meetups/6424-obey-the-testing-goat
>> (a gentle introduction to TDD with Django, for anyone that can't make it
>> to EuroPython this year)
>>
>> Hope they're of interest!
>>
>> HP
>>
>> PS Can I have a little moan about generator / list comprehension scoping
>> in Python 3?  I just ran into this:
>> https://stackoverflow.com/questions/11669379/undefined-global-in-list-generator-expression-using-python3-works-with-python2
>> -- so now I can't use variables from the enclosing scope inside my
>> comprehensions?  that sucks!  Doesn't it?
>>
>>
>>
>>
>> --
>> ------------------------------
>> Harry J.W. Percival
>> ------------------------------
>> Twitter: @hjwp
>> Mobile:  +44 (0) 78877 02511
>> Skype:         harry.percival
>>
>> _______________________________________________
>> python-uk mailing list
>> python-uk at python.org
>> https://mail.python.org/mailman/listinfo/python-uk
>>
>>
>


-- 
------------------------------
Harry J.W. Percival
------------------------------
Twitter: @hjwp
Mobile:  +44 (0) 78877 02511
Skype:         harry.percival
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