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Project Description

Synopsis

tt is a Python library and command-line tool for working with Boolean expressions. Please check out the project site for more information.

Installation

tt has been tested with Python 2.7, 3.3, 3.4, and 3.5 and is written in pure Python with no dependencies, so it only requires a compatible Python installation to run. You can get the latest release from PyPI with:

pip install ttable

Basic Usage

Below are a couple of examples to show you the kind of things tt can do. For more examples and further documentation, take a look at the project site.

As a Library

tt aims to provide a Pythonic interface for working with Boolean expressions. Here are some simple examples from the REPL:

>>> from tt import BooleanExpression, TruthTable
>>> b = BooleanExpression('A xor (B and 1)')
>>> b.tokens
['A', 'xor', '(', 'B', 'and', '1', ')']
>>> b.symbols
['A', 'B']
>>> print(b.tree)
xor
`----A
`----and
     `----B
     `----1
>>> b.evaluate(A=True, B=False)
True
>>> t = TruthTable(b)
>>> print(t)
+---+---+---+
| A | B |   |
+---+---+---+
| 0 | 0 | 0 |
+---+---+---+
| 0 | 1 | 1 |
+---+---+---+
| 1 | 0 | 1 |
+---+---+---+
| 1 | 1 | 0 |
+---+---+---+
>>> t = TruthTable('A or B', fill_all=False)
>>> print(t)
Empty!
>>> t.fill(A=0)
>>> print(t)
+---+---+---+
| A | B |   |
+---+---+---+
| 0 | 0 | 0 |
+---+---+---+
| 0 | 1 | 1 |
+---+---+---+
>>> t.fill(A=1)
>>> print(t)
+---+---+---+
| A | B |   |
+---+---+---+
| 0 | 0 | 0 |
+---+---+---+
| 0 | 1 | 1 |
+---+---+---+
| 1 | 0 | 1 |
+---+---+---+
| 1 | 1 | 1 |
+---+---+---+

From the Command Line

tt also provides a command-line interface for working with expressions. Here are a couple of examples:

$ tt tokens "(op1 nand op2) xnor op3"
(
op1
nand
op2
)
xnor
op3

$ tt table A or B
+---+---+---+
| A | B |   |
+---+---+---+
| 0 | 0 | 0 |
+---+---+---+
| 0 | 1 | 1 |
+---+---+---+
| 1 | 0 | 1 |
+---+---+---+
| 1 | 1 | 1 |
+---+---+---+

$ tt tree A or or B
Error! Unexpected binary operator "or":
A or or B
     ^

License

tt uses the MIT License.

Release History

Release History

0.4.1

This version

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0.3

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0.2

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Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
ttable-0.4.1-py2.py3-none-any.whl (18.0 kB) Copy SHA256 Checksum SHA256 3.5 Wheel Dec 20, 2016

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