semvec/pypi-packages huggingface dataset:
django-expression-fields 0.4.0
django-expression-fields allows typing mathematical expressions into form fields and having only the calculated result stored in the database.
License: MIT License
Keywords: django field expression math


django-expression-fields lets your users type a mathematical expression in a form field.
Python does the math and stores the result in the database. For example, suppose you have a model to track Things, like this::

    class Thing(models.Model):
    	cost = models.DecimalField(
    		max_digits=5, decimal_places=2, null=True, blank=True)

Suppose Things come in packs of 12 for $7.99. Your users have to do some math to fill in the cost of a single Thing, $0.67.

But not with an expression field! Create your form like this::

	class ThingForm(forms.Form):
		cost = DecimalExpressionField(
			max_digits=5, decimal_places=2, required=False)

Now your user can simply type ``7.99/12`` in the field and Python will do the math for them!