http://code.activestate.com/recipes/tags/evaluator/2010-11-25T18:24:09-08:00ActiveState Code Recipes2010-11-25T18:24:09-08:00Stephen Chappellhttp://code.activestate.com/recipes/users/2608421/http://code.activestate.com/recipes/577469-evaluator-20/

<p style="color: grey"> Python recipe 577469 by <a href="/recipes/users/2608421/">Stephen Chappell</a> (<a href="/recipes/tags/evaluator/">evaluator</a>, <a href="/recipes/tags/expressions/">expressions</a>, <a href="/recipes/tags/math/">math</a>, <a href="/recipes/tags/parser/">parser</a>). </p> <p>This is a complete rewrite of <a href="http://code.activestate.com/recipes/576790/">recipe 576790</a>. While aiming to maintain similar functionality and continuing its implementation for self-academic purposes, a much cleaner parser / tokenizer and operator execution engine were developed. A slightly different math syntax is supported in this version, but it is arguably better and more capable than it previously was. Base prefixes are a feature now supported, and the single downgrade is calculating with integers instead of floats.</p>