Add events to object methods and attributes
Eventize permits to listen to “before” and “after” methods events and “on_get”, “on_change”, “on_set”, “on_del” attributes events.
- Can be used as a simple subject/observer pattern
- Conditional events
- Use descriptors to lazily and unobstrusively listen to “on_get”, “on_change”,”on_set”, “on_del” events on attributes and “before” and “after” events on methods.
- Precise callbacks inheritance (see Subject)
- Statically and dynamically customizable (via inheritance, pattern visitor over a “modifier” protocol, decorators…)
Fine grained event dispatcher
- It can listen to events at 3 levels (by order of execution):
- Descriptor Class: for all classes which use the given Attribute or Method descriptor class
- Descriptor Instance: for all objects of a given class
- Object instance: for the given object attribute value or method
Table of Contents
Install it from pypi:
pip install eventize
or from sources:
git clone email@example.com:apieum/eventize.git cd eventize python setup.py install
Contributions are greatly appreciated.
Please use github (issue tracker, pull requests…) or contact me at apieum [at] gmail [dot] com
Tests are my specs so code (except refactorings) without tests won’t probably be accepted. If you want to contribute please add tests.
Test recommended requirements:
pip install -r dev-requirements.txt
Sometimes –spec-color doesn’t function. You should uninstall nosecolor and nosespec then reinstall nosecolor and nosespec separatly (nosecolor first).
You can fix it like this:
pip uninstall nosespec nosecolor pip install nosecolor && pip install nosespec
In order to have fast feedback with TDD loops, I develop with two virtualenvs (2.7 and 3.x python versions) launched in a splited shell (tmux) which runs tests each time a file changes. Use the code below with option –with-watch to launch tests this way.
git clone firstname.lastname@example.org:apieum/eventize.git cd eventize nosetests --with-spec --spec-color ./eventize # or with watch # nosetests --with-spec --spec-color --with-watch ./eventize
Documentation is generated by sphinx from restructured text localized in doc/source. It is build by make (see doc/Makefile).
Except to explain implementation choices (why), please avoid comments in code. It aims at keeping focus on coding and avoiding outdated comments. Keep long names (vars, functions, classes…) and explicit tests names (complete sentences) to have understandable code.
git clone email@example.com:apieum/eventize.git cd eventize/eventize/doc make all # or make *target* (see in Makefile for *target* or type make)
CI is made by travis for different python versions (trying to maintain compatibility with v2 python).
- It checks:
- test suites (nosetest)
- rst-lint this README
- doc building
- code coverage
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