Welcome to Predicates Documentation
Documentation: | https://predicate.readthedocs.io/ |
---|---|
Source Code: | https://gitlab.com/mc706/predicate |
Issue Tracker: | https://gitlab.com/mc706/predicate/issues |
PyPI: | https://pypi.org/project/predicate/ |
Predicate takes the django queryset filtering language and applies it to building python native predicate functions that
you can pass to the filter
builtin.
This library is mean to make creating native python filter functions readable and easy:
>>> from predicate import where
>>> people = [
... {'name': {'first': 'Joe', 'last': 'Smith'}, 'age': 25},
... {'name': {'first': 'Jane', 'last': 'Smith'}, 'age': 27},
... {'name': {'first': 'John', 'last': 'Smith'}, 'age': 33},
... {'name': {'first': 'Bill', 'last': 'Bob'}, 'age': 40},
... {'name': {'first': 'Joe', 'last': 'Bob'}, 'age': 59},
... ]
>>> young_smiths = list(filter(where(name__last__iexact='smith', age__lte=30), people))
>>> young_smiths
[{'name': {'first': 'Joe', 'last': 'Smith'}, 'age': 25}, {'name': {'first': 'Jane', 'last': 'Smith'}, 'age': 27}]
Installation
This project is distributed via pip
. To get started:
pip install predicate