Skip to main content

Field for Django models that stores multidimensional physical quantities

Project description

A Django application providing model and form field to accept and store multidimensional physical quantities.


This application depends on Pint library, used for operate and manipulate physical quantities. Full documentation is available at


Install django-quantity-field using pip: pip install django-quantity-field.


In order to use a quantity field add it to your model definition:

from quantity_field import ureg
from quantity_field.fields import MultiQuantityField

class Package(models.Model):
    size = MultiQuantityField(dim=3, units=(,, ureg.m))
    weight = MultiQuantityField(units=(ureg.g,

django-quantity-field comes with the custom form field that is used by default for editing in admin or in your forms.

Accessing MultiQuantityField field will returns MultiQuantity object that can be used as ordinary Pint quantities.

>>> from quantity_field.base import MultiQuantity
>>> size = MultiQuantity.from_list(2, 5.5, 4, str(ureg.m))
>>> size
<Quantity(44.0, 'meter ** 3')>
>>> size.dim
>>> [v for v in size]
[<Quantity(2.0, 'meter')>, <Quantity(5.5, 'meter')>, <Quantity(4.0, 'meter')>]


Don’t forget there are no global units in Pint. To use Pint quantities in your project side by side with django-quantity-field use Pint registry from our application.

>>> from quantity_field import ureg
>>> from quantity_field.base import MultiQuantity
>>> box = MultiQuantity.from_string('42 kg')
>>> box + 2.2 *
<Quantity(44.2, 'kilogram')>

Project details

Download files

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

Files for django-quantity-field, version 1.0.1
Filename, size File type Python version Upload date Hashes
Filename, size django_quantity_field-1.0.1-py2-none-any.whl (8.4 kB) File type Wheel Python version py2 Upload date Hashes View
Filename, size django-quantity-field-1.0.1.tar.gz (4.8 kB) File type Source Python version None Upload date Hashes View

Supported by

Pingdom Pingdom Monitoring Google Google Object Storage and Download Analytics Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN DigiCert DigiCert EV certificate StatusPage StatusPage Status page