[Chicago] How do you troubleshoot cgi errors?

[David Rock]

* Ian Bicking <ianb at colorstudy.com> [2007-07-23 12:56]:
> 
> I guess there's a bunch of pieces.  There's getattr(), which you can 
> read up on here: 
> http://www.diveintopython.org/power_of_introspection/getattr.html
> 
> I don't see a lot online on __getattr__.  Huh.  Maybe that's why I 
> encounter so many people who are surprised about it.  The reference docs 
> for that are here: http://python.org/doc/current/ref/attribute-access.html

I have used __getattr__ for a couple things before, but never quite like
this.  
 
> For first class functions you might look at Dive Into Python's 
> functional section: 
> http://diveintopython.org/functional_programming/index.html
> 
> For closures I'm not sure... some of the material out there is really 
> more complex than it needs to be.  Maybe just reflect on this, the 
> simplest of closures:
> 
>    def make_returner(return_value):
>        def returner():
>            return return_value
>       return returner
> 
>    x = make_returner(1)
>    y = make_returner(2)
>    x()
>    y()
> 
> But I dunno.  There's a lot of debate out there about closures, 
> functional programming, etc, none of which illuminates the issue.  So 
> try not to get distracted by that stuff.

As always, thanks for all the info :-)

-- 
David Rock
david at graniteweb.com