eventize 0.1

Installation

Install it from pypi:

pip install eventize

or from sources:

git clone git@github.com:apieum/eventize.git
cd eventize
python setup.py install

Usage

Example 1 - observe a method:

from eventize import EventMethod
self_valid = lambda self, *args, **kwargs: self.valid
def not_valid(event):
  event.instance.valid = not event.instance.valid

class Observed(object):
    is_valid = EventMethod(self_valid)
    def __init__(self):
        self.valid = False
        self.logs=[]

    def log(self, event):
        self.logs.append(self.log_message(*event.args, is_valid=self.valid))

    def log_message(self, *args, **kwargs):
        return "Validity Checks with args: '%s', current:'%s'" % (args, kwargs['is_valid'])



my_object = Observed()
my_object.is_valid.before += my_object.log
my_object.is_valid.before.called_with('permute').do(not_valid)
my_object.is_valid.after += my_object.log

assert my_object.is_valid() is False
assert my_object.is_valid('permute') is True

assert my_object.logs == [
    my_object.log_message(is_valid=False),
    my_object.log_message(is_valid=False),
    my_object.log_message('permute', is_valid=False),
    my_object.log_message('permute', is_valid=True),
]

Development

Fell free to give feedback or improvements.

Launch test:

git clone git@github.com:apieum/eventize.git
cd eventize
nosetests --with-spec --spec-color ./