CSV Loader

lib/csv_loader/errors.py

@@ -0,0 +1,21 @@
+class CSVValidationError(Exception):
+    """Extended validation exception class containing additional attributes."""
+
+    def __init__(self, line_number: int, original_error: Exception) -> None:
+        self.line_number = line_number
+        self.original_error = original_error
+
+    def __str__(self) -> str:
+        return f"Error at line {self.line_number}: {self.original_error}"
+
+
+class MappingStrategyError(Exception):
+    ...
+
+
+class HeaderNotSetError(MappingStrategyError):
+    detail = "Header must be set in order to use MappingStrategyByHeader"
+
+
+class IndexOutOfHeaderBounds(MappingStrategyError):
+    detail = "Row value index out of header bounds"