python-dependency-injector/examples/readme/providers.py
2015-03-30 16:11:33 +03:00

26 lines
615 B
Python

"""`NewInstance` and `Singleton` providers example."""
from objects.providers import NewInstance
from objects.providers import Singleton
# NewInstance provider will create new instance of specified class
# on every call.
new_object = NewInstance(object)
object_1 = new_object()
object_2 = new_object()
assert object_1 is not object_2
# Singleton provider will create new instance of specified class on first call,
# and return same instance on every next call.
single_object = Singleton(object)
single_object_1 = single_object()
single_object_2 = single_object()
assert single_object_1 is single_object_2