lima 0.2.2

Lightweight Marshalling of Python 3 Objects.

lima takes arbitrary Python objects and converts them into data structures native to Python. The result can easily be serialized into JSON, XML, and all sorts of other things. lima is Free Software, lightweight and fast.

Key Features

Lightweight

lima has only a few hundred SLOC. lima has no external dependencies.

Fast

lima tries to be as fast as possible while still remaining pure Python 3.

Focused

lima doesn’t try to do an ORM’s job and it doesn’t try to do a JSON library’s job.

Extensible

Build complex schemas out of simpler ones. Extend existing fields types or define your own.

Easy to learn

lima is not only fast but also fast (and easy) to learn.

Well documented

lima has a comprehensive tutorial and more than one line of docstring per line of Python code

Free

lima is Free Software, licensed under the terms of the MIT license (see the LICENSE file for details).

lima at a Glance

import datetime
import lima

# a model
class Book:
    def __init__(self, title, date_published):
        self.title = title
        self.date_published = date_published

# a marshalling schema
class BookSchema(lima.Schema):
    title = lima.fields.String()
    published = lima.fields.Date(attr='date_published')

book = Book('The Old Man and the Sea', datetime.date(1952, 9, 1))
schema = BookSchema()
schema.dump(book)
# {'published': '1952-09-01', 'title': 'The Old Man and the Sea'}

Requirements

Python 3.3 or newer. That’s it.

Installation

$ pip install lima

See the documentation for more comprehensive install instructions.