Object Data Mapping for Python
Project description
Odin provides a declarative framework for defining resources (classes) and their relationships, validation of the fields that make up the resources and mapping between objects (either a resource, or other python structures).
Odin also comes with built in serialisation tools for importing and exporting data from resources.
Highlights
Class based declarative style
Fields for building composite resources
Field and Resource level validation
Mapping between resources or extended to other object types (eg Django Models)
Easy extension to support custom fields
Python 2.7+, Python 3.3+ and PyPy 1 supported
Integration with Django (see baldr)
Minimal dependencies (base functionality only requires six)
1 certain contrib items are not supported. Pint is not installable with PyPy.
Quick links
Upcoming features
In development
Customisable generation of documentation of resources (for integration into Sphinx)
XML Codec (export completed)
Complete documentation, this will pretty much always be here.
Improvements for CSV Codec (writing, reading multi resource CSV’s)
RESTful interface with support for Flask and Django see (see baldr)
Integration with other libraries (ie Django Models/Forms) (see baldr)
Planning
YAML codec
Requires
six
Optional
simplejson - Odin will use simplejson if it is available or fallback to the builtin json library
msgpack-python - To enable use of the msgpack codec
Contrib
jinja2 >= 2.7 - For documentation generation
pint - Support for physical quantities using the Pint library.
Example
With definition:
import odin class Author(odin.Resource): name = odin.StringField() class Publisher(odin.Resource): name = odin.StringField() class Book(odin.Resource): title = odin.StringField() authors = odin.ArrayOf(Author) publisher = odin.DictAs(Publisher) genre = odin.StringField() num_pages = odin.IntegerField()
>>> b = Book( title="Consider Phlebas", genre="Space Opera", publisher=Publisher(name="Macmillan"), num_pages=471 ) >>> b.authors.append(Author(name="Iain M. Banks")) >>> from odin.codecs import json_codec >>> json_codec.dumps(b, indent=4) { "$": "Book", "authors": [ { "$": "Author", "name": "Iain M. Banks" } ], "genre": "Space Opera", "num_pages": 471, "publisher": { "$": "Publisher", "name": "Macmillan" }, "title": "Consider Phlebas" }
Special Mention
I would like to acknowledge the strong influence on the design of Odin from the Django ORM and it’s notable contributor Malcolm Tredinnick. He was a valued colleague who’s untimely passing left a large void in our company and the wider community.
Project details
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
Built Distribution
Hashes for odin-0.6.0.1-py2.py3-none-any.whl
Algorithm | Hash digest | |
---|---|---|
SHA256 | a35536baafb9565cec5cc229a0c079b00a97903eac22a7740738c1c89cbb20e1 |
|
MD5 | dfc144ab55b5efe05bee84a648465d74 |
|
BLAKE2b-256 | a072eeb798718ea6e3f2a9ec93d6c72087a9ecca3f94a8db28cf6ac6b6da32ca |