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README.rst

Python Catalog

https://travis-ci.org/jsatt/python-catalog.svg?branch=master

Catalog is a data structure for storing complex enumeration. It provides a clean definition pattern and several options for member lookup.

Supports Python 2.7, 3.3+

Install

pip install pycatalog

Usage

from catalog import Catalog

class Color(Catalog):
    _attrs = 'value', 'label', 'other'
    red = 1, 'Red', 'stuff'
    blue = 2, 'Blue', 'things'

# Access values as Attributes
> Color.red.value
1
> Color.red.label
'Red'

# Call to look up members by attribute value
> Color('Blue', 'label')
Color.blue

# Calling without attribute specified assumes first attribute defined in `_attrs`
> Color(1)
Color.red

Attributes

_attrs: Defines names of attributes of members. (default: ['value'])

_member_class: Override the class used to create members. Create a custom member class by extending CatalogMember.

Methods

_zip: Return all members as a tuple. If attrs are provided as positional arguments, only those attributes will be included, and in that order. Otherwise all attributes are included followed by the member name.

> Color._zip()
(('red', 1, 'Red', 'stuff'), ('blue', 2, 'Blue', 'things'))
> Colot._zip('value', 'label')
((1, 'Red'), (2, 'Blue'))

Changelog

1.2.0 - Add support for Python 2. (Wrong direction. I know)

1.1.1 - Add _zip method

1.0.0 - Initial build and packaging

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Data structure for complex enumeration

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