Custom error if number is out of bounds

[lars-reimann]

Is your feature request related to a problem?

We have several cases where we check that a number is in some interval. However, error messages vastly differ.

Desired solution

• New error class OutOfBoundsError that inherits from ValueError
• The bounds and the actual value should be passed to the constructor as arguments
• The error message should then be build in the constructor and passed to the super constructor

Possible alternatives (optional)

No response

Screenshots (optional)

No response

Additional Context (optional)

No response

[alex-senger]

The error doesn't seem to be useful. Need to discuss with customer.

[lars-reimann]

The error doesn't seem to be useful. Need to discuss with customer.

What's the issue with it?

[lars-reimann]

How about something like this:

class OutOfBoundsError:
   def __init__(self, actual: float, *, lower_bound: Bound | None = None, upper_bound: Bound | None = None):
        ...

class Bound(ABC):
    ...

class ClosedBound(Bound):
    def __init__(self, value: float):
        ...

class OpenBound(Bound):
    def __init__(self, value: float):
        ...

Usage:

OutOfBoundsError(actual = 0.5, upper_bound = OpenBound(1))

[patrikguempel]

I just used value error in Image#blend, as soon as this error is implemented, it can be used there too

[lars-reimann]

🎉 This issue has been resolved in version 0.15.0 🎉

The release is available on:

• v0.15.0
• GitHub release

Your semantic-release bot 📦🚀