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Dependencies
- distribute
- [docs] agoraplex.themes.sphinx>=0.1.3
- [docs] pygments
- [docs] sphinx>=1.1
- [tests] coverage>=3.6
- [tests] nose>=1.2.1
- [tests] pinocchio>=0.3.1
- [tests] pygments
- [tests] xtraceback>=0.3.3
A collection of predicate factories, functions, and partials, for functional programming.
The predicates module provides a variety of predicates, predicate factories, and predicate partials.
"A predicate is a function that returns the truth value of some condition."
—Andrew M. Kuchling, Python Functional Programming HOWTO
Predicate factories are functions which create new predicates based on their arguments (e.g., _and, _nargs). Predicate partials are functions created by partial application of a predicate's arguments.
Complete project documentation is available. Project source is available at the github project page.
Install
To install from PyPI:
$ pip install predicates
Developer installation
To install the development version from the github repository:
$ git clone https://github.com/agoraplex/predicates.git predicates $ cd predicates $ virtualenv-2.7 --no-site-packages venv $ pip install -e '.[docs,tests]'
Note
Pay particular attention to that pip install line. That's a period, followed by [docs,tests] [1] (and it's in single-quotes to keep bash from misunderstanding the square brackets).
Use nosetests to run the test suite:
$ python setup.py nosetests
Use Sphinx to generate the HTML docs:
# to build in build/sphinx/html/...: $ python setup.py build_sphinx # to build in docs/_build/html/... (which is what I do): $ make -C docs
| [1] | Yes, it's a hack. See the python setup.py develop and extras thread on the python-distutils-sig mailing list). |
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