Orca MM Runner

src/opi/exceptions.py

@@ -0,0 +1,37 @@
+"""Module for defining exception types raised by OPI."""
+
+from typing import Sequence
+
+
+class OpiError(Exception):
+    """Base class for all OPI based errors."""
+
+    pass
+
+
+class OpiExecutionError(OpiError):
+    """Base class for errors raised while executing binary applications."""
+
+    pass
+
+
+class OrcaMmError(OpiExecutionError):
+    """Raised when an `orca_mm` command reports an error."""
+
+    def __init__(self, command: str, arguments: Sequence[str], error: str):
+        """
+        Parameters
+        ----------
+        command : str
+            `orca_mm` subcommand that was executed.
+        arguments : Sequence[str]
+            Command-line arguments passed to `orca_mm`.
+        error : str
+            Error output captured from `orca_mm` STDERR.
+        """
+        fmt_arguments = " ".join(arguments)
+        message = (
+            f"Failed running command: 'orca_mm -{command} {fmt_arguments}'.\n"
+            f"orca_mm failed with the following error:\n{error.strip()}"
+        )
+        super().__init__(message)