[Baypiggies] A mini-decorator workshop

Bryce Verdier bryceverdier at gmail.com
Sat Jul 24 01:58:07 CEST 2010

My work schedule  is horrible for stuff like this. ( Currently 3pm-12am, 
but next week going to 1-9pm). In order for me to attend there needs to 
be wireless access (this is why I wasn't there last night... Symantec is 
awesome for hosting, but loses points for no wifi). Regardless I would 
love to attend this workshop.


On 07/23/2010 04:52 PM, Glen Jarvis wrote:
> I really had a good time at the talk last night. There were some 
> *good* questions and lots of interests -- that's always fun.
> I am *very* interested in helping everyone get past this first hurdle.
> If there is demand, I will hold a 2-3 hour FREE hands-on workshop over 
> the same material (assuming we can all agree on a date, time and 
> location).
> Please be aware that the scope of what I'm talking about is still 
> within what was presented. Therefore, we won't be going into, for 
> example, the introspection that is used in attrs. It's easy enough, 
> but not the purpose of the talk/workshop. We won't talk about class 
> decorators, etc.
> This first level idea is "How do I use decorators," -- not how do I 
> write my own or even how these decorators work internally (although we 
> can certainly dip our toes in at the very end of the workshop). We can 
> also expand on how to use decorators before the pie syntax was 
> included in Python - as that's still in the scope of *using* decorators.
> If we have questions outside this scope, I will plead ignorance (which 
> may actually be true; but maybe not) and move to the next subject.
> Now that I've firmly set your expectation on scope, if there's 
> interest in doing this, we can put together a small get together one 
> evening after work. Because I already have materials prepared, this 
> won't take any lead-time to set-up.
> Note that this will give us more time. So, I can ask you to, for example:
> * Write a function that takes two arguments. The first argument should 
> only be an integer. But, the second argument can either be an integer 
> or a float. Enforce this through assertions. Code should be PEP-8 
> compliant.
> * The above, but pick one of the four decorators we discussed to do 
> the same thing, instead. We can then have a discussion on why a person 
> would choose the first (above) or this approach to do the same task. 
> (Or some may argue that we are pre-optimizing and we shouldn't make 
> such restrictions on functions unless absolutely necessary (and I 
> would agree).
> * (Other similar exercises with some of the other three decorators we 
> have distributed and discussed)
> * Write a function that takes as its arguments two functions (we'll 
> call f1, and f2). Within the body of the function, call f1 and f2. 
> Demonstrate how we see pass functions around like any object
> * Create a function that wraps another function
> * etc.
> If you can already do all of the above, you'd probably be bored silly 
> and shouldn't attend this workshop. We'll advance to deeper levels 
> over time -- just not at this meeting.
> The format would be in two portions: An introduction (same spiel as 
> last night), and self-paced assignments/workshop. We would take more 
> time to work on the example exercises. And, you would work on the 
> examples while while we wait for questions to help you when you get stuck.
> Because this is self paced (after my initial spiel), people will 
> finish at different times. I can imagine we'll finish in 3 hours or 
> less -- some much quicker than others.
> Let me know if you're interested and I'll give you a 10% discount on 
> the already FREE workshop ;)  This offer expires 1 week (i.e., if no 
> one responds by then, I'm moving on to something else)...
> Cheers,
> Glen
> -- 
> Whatever you can do or imagine, begin it;
> boldness has beauty, magic, and power in it.
> -- Goethe
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