Best way to evaluate boolean expressions from strings?

Gabriel Genellina gagsl-py2 at
Mon Apr 27 19:24:04 CEST 2009

En Mon, 27 Apr 2009 14:03:01 -0300, Gustavo Narea <me at>  

> I need to evaluate boolean expressions like "foo == 1" or "foo ==1 and
> (bar > 2 or bar == 0)" which are defined as strings (in a database or
> a plain text file, for example). How would you achieve this?

This recent thread may be of interest:

Safe eval of moderately simple math expressions

Gabriel Genellina

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