mirror of
https://github.com/liberatedsystems/openCom-Companion.git
synced 2024-11-30 09:10:36 +01:00
17 lines
724 B
Plaintext
17 lines
724 B
Plaintext
# Of course, "very flexible Python" allows you to do without an abstract
|
|
# superclass at all or use the clever exception `NotImplementedError`. In my
|
|
# opinion, this can negatively affect the architecture of the application.
|
|
# I would like to point out that using Kivy, one could use the on-signaling
|
|
# model. In this case, when the state changes, the model will send a signal
|
|
# that can be received by all attached observers. This approach seems less
|
|
# universal - you may want to use a different library in the future.
|
|
|
|
|
|
class Observer:
|
|
"""Abstract superclass for all observers."""
|
|
|
|
def model_is_changed(self):
|
|
"""
|
|
The method that will be called on the observer when the model changes.
|
|
"""
|