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A interval package for Python which deals with interval arithmetic

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Note: This library is no longer maintained

I recommend using the newer portion library instead

Pyinter

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Pyinter is a small and simple library written in Python for performing interval and discontinous range arithmetic.

>>> pyinter.openclosed(1.1, 12)
(1.1, 12]
>>> discontinous_range = pyinter.IntervalSet([pyinter.closedopen(5, 10), pyinter.closed(22, 23)])
>>> discontinous_range
IntervalSet([5, 10), [22, 23])
>>> 7 in discontinous_range
True
>>> 10 in discontinous_range
False  # This isn't in the range as it is an open interval which doesn't include its end points

Features

  • interval objects which can be
    • unioned
    • intersected
    • easily constructed using helper functions: open, closed, openclosed and closedopen
  • interval sets which can be
    • unioned
    • intersected

Installation

To install Pyinter, simply:

$ pip install pyinter

Or, if you absolutely must:

$ easy_install pyinter

But I'm told you really shouldn't do that.

Documentation

Documentation is available at http://pyinter.readthedocs.org.

Contribute

Contributions or suggestions for improvements are welcome.

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A interval package for Python which deals with interval arithmetic

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