Injector - Python dependency injection framework, inspired by Guice
Project description
This framework is also similar to snake-guice, but aims for simplification.
While being inspired by Guice, it does not slavishly replicate its API. Providing a Pythonic API trumps faithful replication.
An Example
Here’s a brief, completely contrived, example from the unit tests:
from injector import Injector, Module, Key, injects, provides
Weight = Key('Weight')
Age = Key('Age')
class MyModule(Module):
@provides(Weight)
def provide_weight(self):
return 50.0
@provides(Age)
def provide_age(self):
return 25
# TODO(alec) Make provides/inject order independent.
@provides(str)
@inject(age=Age, weight=Weight)
def provide_description(self, age, weight):
return 'Bob is %d and weighs %0.1fkg' % (age, weight)
assert_equal(Injector(MyModule()).get(str), 'Bob is 25 and weighs 50.0kg')
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