Exceptions¶

`etcion.exceptions` ¶

Custom exception types for the etcion library.

All exceptions inherit from :class:PyArchiError, allowing consumers to catch all library errors with a single except PyArchiError clause.

This module has no internal imports and sits at the bottom of the dependency graph -- any sub-package may import from it safely.

Bases: Exception

Base exception for all etcion library errors.

Raised when a metamodel constraint is violated.

This is distinct from pydantic.ValidationError.

Raised when the derivation engine encounters an unrecoverable state.

Raised when a model fails a conformance check against the ArchiMate 3.2 specification.