David Brown wrote:
> On Sat, Aug 30, 2008 at 05:58:18PM -0700, James G. Sack (jim) wrote:
>
>> ..thus the same problem stands, functionally composing a string (eg, by
>> adding y+z) produces an escape-form I can't seem to eval.
>>
>> I'm really thinking there's something wrong with Python, but thought it
>> might be politic to first check whether there wasn't something wrong
>> with me. :-)
>
> If you're evaling it, it is expecting a string that contains a python
> expression. If you want that to be parsed as a string, you'll need to
> have actual quotes in the string:
>
> >>> eval("\"\\x41\"")
> 'A'
>
> Calling eval("x+y") isn't going to be any different than x+y. It
> isn't going to evaluate the contents of the strings. Perhaps you
> wanted something like:
>
> eval("\"" + x + y + "\"")
>
>
Oh wow! I did miss that subtlety. Good explanation.
So I wonder if is this the canonical way to do this kind of thing, or is
there a better way?
Regards,
..jim
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