I have a program that implements a model and a view.
I want the model to do some processing and return a warning to the view if something didn't go right.
Now, I want the warning to be passed around as sort of an exception, so if I have a GUI as a view, I can easily create a Message Box or something similar to that to show the warning, but without interrupting program flow.
Is there any way I can achieve this?
Note: I am aware of the warnings module in Python, but I do not know if I can pass those warnings as exceptions that don't interrupt program flow.
Relevant code:
class Model():
def __init__(self):
try:
with open(some_file) as file:
self.file = file.readlines()
except FileNotFoundError:
# I don't want the Model to print the message here
# print("Warning: File not found, continuing with defaults")
# I want a warning to be passed up to the view
self.file = 'some piece of data'
raise FileNotFoundError(error_msg)
class View():
def __init__(self):
try:
self.model = Model()
except FileNotFoundError:
# I want to catch the warning here and display it
# but if I catch an exception here, Python will complain that
# self.model was not initialized correctly when I use it later
Thanks