"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.
https://github.com/bastikr/boolean.py
Build status:
>>> 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
http://readthedocs.org/docs/booleanpy/en/latest/
`pip install boolean.py`
Simplified BSD License
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