python Programming Glossary: evaluator

GroupBy functions in Python Pandas like SUM(col_1*col_2), weighted average etc

http://stackoverflow.com/questions/10009468/groupby-functions-in-python-pandas-like-sumcol-1col-2-weighted-average-etc

I want to eventually build an embedded array expression evaluator Numexpr on steroids to do things like this. Right now we're..

Safe way to parse user-supplied mathematical formula in Python

http://stackoverflow.com/questions/11951701/safe-way-to-parse-user-supplied-mathematical-formula-in-python

formula in Python Is there a math expressions parser evaluator for Python I am not the first to ask this question but answers..

Using ast and whitelists to make python's eval() safe?

http://stackoverflow.com/questions/12523516/using-ast-and-whitelists-to-make-pythons-eval-safe

problem is that I'm looking to write a little calculator evaluator program that'll take untrusted input using a subset of python's..

Parsing SQL with Python

http://stackoverflow.com/questions/1394998/parsing-sql-with-python

like some advice on how to best implement a SQL parser and evaluator. Does the approach described above sound about right Are there..

Dynamically evaluating simple boolean logic in Python

http://stackoverflow.com/questions/2467590/dynamically-evaluating-simple-boolean-logic-in-python

question It shouldn't be difficult at all to write a evaluator that can handle this for example using pyparsing . You only..

Equivalent of python eval in Haskell

http://stackoverflow.com/questions/2469139/equivalent-of-python-eval-in-haskell

like Parsec it is actually very easy to write a parser and evaluator for these kinds of input problems and considerably removes the..

Is “safe_eval” really safe?

http://stackoverflow.com/questions/28369/is-safe-eval-really-safe

to write your own parser you could just write your own evaluator for the python ast import compiler ast compiler.parse print..

Safe expression parser in Python

http://stackoverflow.com/questions/3582403/safe-expression-parser-in-python

fourFn.py A conventional arithmetic infix notation parser evaluator implementation using pyparsing despite its name this actually.. file view simpleBool.py A boolean infix notation parser evaluator using a pyparsing helper method operatorPrecedence which simplifies..