Merge pull request #134 from oemof/features/improve-reading-error-mes…

…sage Improve error message for reading datapackage
oemof · Nov 10, 2023 · f4fdfa5 · f4fdfa5
2 parents d5c33a9 + 8e446f4
commit f4fdfa5
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diff --git a/CHANGELOG.rst b/CHANGELOG.rst
@@ -10,6 +10,7 @@ Unreleased
 
 Features
 
+* Improve reading error message `#134 <https://github.com/oemof/oemof-tabular/pull/134>`_
 * Remove facade relicts `#135 <https://github.com/oemof/oemof-tabular/pull/135>`_
 
 Fixes

diff --git a/src/oemof/tabular/datapackage/reading.py b/src/oemof/tabular/datapackage/reading.py
@@ -133,8 +133,13 @@ def deserialize_energy_system(cls, path, typemap={}, attributemap={}):
     for r in package.resources:
         try:
             r.read()
-        except dp.exceptions.CastError:
-            raise dp.exceptions.CastError((cast_error_msg).format(r.name))
+        except dp.exceptions.CastError as e:
+            raise dp.exceptions.CastError(
+                "\n"
+                + (cast_error_msg).format(r.name)
+                + "\n"
+                + "\n ".join([str(i) for i in e.errors])
+            )
     empty = HSN()
     empty.read = lambda *xs, **ks: ()
     empty.headers = ()