python-dependency-injector/examples/providers/factory_init_args.py

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859 B
Python

"""`di.Factory` providers with init positional injections example."""
import dependency_injector as di
class User(object):
"""Example class User."""
def __init__(self, main_photo):
"""Initializer."""
self.main_photo = main_photo
super(User, self).__init__()
class Photo(object):
"""Example class Photo."""
# User and Photo factories:
photos_factory = di.Factory(Photo)
users_factory = di.Factory(User, photos_factory)
# Creating several User objects:
user1 = users_factory() # Same as: user1 = User(Photo())
user2 = users_factory() # Same as: user2 = User(Photo())
# Making some asserts:
assert isinstance(user1, User)
assert isinstance(user1.main_photo, Photo)
assert isinstance(user2, User)
assert isinstance(user2.main_photo, Photo)
assert user1 is not user2
assert user1.main_photo is not user2.main_photo