PEP 484 introduced type hints, at this time documenting exceptions was left to docstrings. I seek to suggest a reason this feature might be desirable along with how it might be used. Error handling in python does an excellent job of keeping the error-path out of the way when writing the normal flow of logic, however for larger code bases it is not always clear what exceptions may be caused by calling existing code. Since these cases are easily missed they may reach a higher level than intended ...
This is a discussion on Python’s forums about adding something akin to a throws keyword in python.
@sugar_in_your_tea Since when is Python supposed to equal pseudo code? It should be easily readable, but that doesn’t mean it should *equal* pseudo code.
You can either test for values being 0 before dividing, or catching an exception when it is. Especially when dividing multiple times in one function, I would go for the latter option.
@sugar_in_your_tea I don’t think we should change any functionality when it comes to exception handling. Code based documentation would be great for type checking and auto-generated docs, but they can be done using annotations, not changed interfaces.
Monads are already possible, but should not be the normal way to code either. It’s clunky and difficult to understand. It might work great for some scenarios, but doesn’t for many others.
@sugar_in_your_tea Since when is Python supposed to equal pseudo code? It should be easily readable, but that doesn’t mean it should *equal* pseudo code.
You can either test for values being 0 before dividing, or catching an exception when it is. Especially when dividing multiple times in one function, I would go for the latter option.
@sugar_in_your_tea I don’t think we should change any functionality when it comes to exception handling. Code based documentation would be great for type checking and auto-generated docs, but they can be done using annotations, not changed interfaces.
Monads are already possible, but should not be the normal way to code either. It’s clunky and difficult to understand. It might work great for some scenarios, but doesn’t for many others.