Improve missing Column Error (#52)

ratt-ru · Jan 21, 2025 · 849f6b5 · 849f6b5
1 parent c6c9212
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diff --git a/doc/source/changelog.rst b/doc/source/changelog.rst
@@ -5,6 +5,7 @@ Changelog
 
 X.Y.Z (DD-MM-YYYY)
 ------------------
+* Improve Missing Column error (:pr:`52`)
 * Fix `open_datatree` instructions in the README (:pr:`51`)
 * Skip test case that segfaults on numpy 2.2.2 (:pr:`50`)
 * Upgrade to xarray 2025.1.1 (:pr:`49`)

diff --git a/xarray_ms/backend/msv2/main_dataset_factory.py b/xarray_ms/backend/msv2/main_dataset_factory.py
@@ -72,7 +72,7 @@ def _variable_from_column(self, column: str) -> Variable:
     try:
       schema = MSV4_to_MSV2_COLUMN_SCHEMAS[column]
     except KeyError:
-      raise KeyError(f"No Column Schema exist for {column}")
+      raise KeyError(f"Column {column} was not present")
 
     try:
       column_desc = main_column_descs[schema.name]