Skip to main content

MongoDB Object DataBase (MODB) for Python objects

Project description

https://img.shields.io/pypi/v/jaraco.modb.svg https://img.shields.io/pypi/pyversions/jaraco.modb.svg tests Code style: Black

jaraco.modb is a small, pure-Python library for persisting Python objects to MongoDB.

Manual Usage

jaraco.modb facilitates using jsonpickle to produce MongoDB-friendly representations of pickleable Python objects for easy storage in a MongoDB database.

One may simply encode and decode Python objects to MongoDB BSON-friendly representations:

class MyObject(object):
    def __init__(self, val):
        self.val = val

import jaraco.modb
import pymongo
mongo_collection = pymongo.MongoClient().mydb.mycollection
val = MyObject(3)
# save the object to the DB
id = mongo_collection.save(jaraco.modb.encode(val))
# retrieve the object from the DB
new_val = jaraco.modb.decode(mongo_collection.find_one(id))
assert isinstance(new_val, MyObject)
assert new_val.val == 3

A more detailed tutorial is now published as a Jupyter Notebook.

Automatic Usage

jaraco.modb also provides an SON Manipulator suitable for automatically encoding arbitrary objects for a pymongo.Database:

jaraco.modb.SONManipulator.install(mongo_collection.database)
mongo_collection.save({'val': val})

Unfortunately, due to a limitation with the API of the SONManipulator, it’s not possible to save a custom object as the document itself (the document must always be a dict).

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

jaraco.modb-4.1.0.tar.gz (17.2 kB view hashes)

Uploaded Source

Built Distribution

jaraco.modb-4.1.0-py3-none-any.whl (3.9 kB view hashes)

Uploaded Python 3

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page