Newbie can't figure out documentation practices

[Bengt Richter]

On Fri, 09 May 2003 17:54:55 -0600, Fernando Perez <fperez528 at yahoo.com> wrote:

>Bengt Richter wrote:
>
>
>> I think you may not want to use it in all environments, though:
>> 
>>  >>> class InterpolationDictClass:
>>  ...     import sys
>>  ...     def __getitem__(self, name):
>>  ...         frame = sys._getframe(1)
>>  ...         return eval(name, frame.f_globals, frame.f_locals)
>>  ...
>>  >>> idc = InterpolationDictClass()
>>  >>> format =
>>  >>> '%(__import__("sys").stdout.write("coulda-been-worse"))s\neh?'
>>  >>> print format  % idc
>>  coulda-been-worseNone
>>  eh?
>
>Oh, I know. That evil eval in there is an open door for all sorts of fun
>stuff to happen.  
>
>One more reason why (I think) there should be a newbie-friendly way of
>getting my canonical
>
>print '%(self.hello)s' % locals()
>
>to work.  Having the cleanest (IMO) solution involve both stack frame
>manipulations and an eval() is not my idea of newbie-friendly ;)
>
See my other post in this thread, but is wrapping your locals() with VS()
close enough? (BTW, I forgot to mention that it's not tested much beyond the
posted examples).

 >>> from valsources import ValSources as VS
 >>> class Hello:
 ...    hello = 'Hello class variable hello'
 ...    def test(self):
 ...        print '%(self.hello)s' % VS(locals())
 ...
 >>> h = Hello()
 >>> h.test()
 Hello class variable hello

Regards,
Bengt Richter