[Tutor] Quoting trouble

[Marilyn Davis]

On Fri, 20 Jan 2006, Python wrote:

> On Fri, 2006-01-20 at 13:50 -0800, Marilyn Davis wrote:
> >         for each in significant_headers.keys():
> >             this = '''self.h_%s = "%s"''' % \
> >                    (each[:-2].lower().replace('-','_'),
> >                     repr(significant_headers[each]))
> >             exec(this)
> 
> So you are using exec to process an assignment statement.  The setattr
> builtin function will do what you want.
> 
> http://docs.python.org/lib/built-in-funcs.html#l2h-64
> 
> so your code could wind up looking something like:
> 
> setattr( self,
>     'h_' + each[:-2].lower().replace('-','_'),
>     significant_headers[each]
>     )
> 
> Looking at that code, you can pull the key and value from
> significant_headers in the for statement.  That is:
> 
> for key,val in significant_headers.items():
>     setattr( self,
>         'h_' + key[:-2].lower().replace('-','_'),
>         val
>     )
> 
> Now the line that actually determines the attribute name looks pretty
> ugly.  I would recommend writing a function to replace that operation
> with an understandable function name (perhaps key2name).  That would
> result in:
>     setattr(self, key2name(key), val)

Very nice indeed!

> 
> 
> Hope this helps.  The ease with which Python allows you to attach names
> to values is one of the great features of the language.

Yes.  Thank you so much.  I'll fix it and I'm glad to have it in my
bag of tricks.

Marilyn

> 
> 

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