"boolean.py" is a small library implementing a boolean algebra. It defines two base elements, TRUE and FALSE, and a Symbol class that can take on one of these two values. Calculations are done in terms of AND, OR and NOT - other compositions like XOR and NAND are not implemented but can be emulated with AND or and NOT. Expressions are constructed from parsed strings or in Python.
It runs on Python 2.7 and Python 3.
>>> import boolean >>> algebra = boolean.BooleanAlgebra() >>> expression1 = algebra.parse(u'apple and (oranges or banana) and not banana', simplify=False) >>> expression1 AND(Symbol('apple'), OR(Symbol('oranges'), Symbol('banana')), NOT(Symbol('banana'))) >>> expression2 = algebra.parse(u'(oranges | banana) and not banana & apple', simplify=True) >>> expression2 AND(Symbol('apple'), NOT(Symbol('banana')), Symbol('oranges')) >>> expression1 == expression2 False >>> expression1.simplify() == expression2 True
pip install boolean.py
boolean.py with your current Python environment:
python setup.py test
Test with all of the supported Python environments using
pip install -r test-requirements.txt tox
InterpreterNotFound, limit it to python interpreters that are actually installed on your machine:
tox -e py27,py36
Simplified BSD License