lima: 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.
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'}