Changeset 7f75a3f in sasview for src/sas/sascalc/dataloader/loader.py

Timestamp:

Apr 5, 2017 11:08:59 AM (8 years ago)

Author:

krzywon

Branches:

master, ESS_GUI, ESS_GUI_Docs, ESS_GUI_batch_fitting, ESS_GUI_bumps_abstraction, ESS_GUI_iss1116, ESS_GUI_iss879, ESS_GUI_iss959, ESS_GUI_opencl, ESS_GUI_ordering, ESS_GUI_sync_sascalc, costrafo411, magnetic_scatt, release-4.2.2, ticket-1009, ticket-1094-headless, ticket-1242-2d-resolution, ticket-1243, ticket-1249, ticket885, unittest-saveload

Children:

278ddee

Parents:

69400ec

git-author:

Jeff Krzywon <krzywon@…> (04/05/17 11:08:59)

git-committer:

krzywon <krzywon@…> (04/05/17 11:08:59)

Message:

More explicit error messages when file loading fails. see #889

File:

• src/sas/sascalc/dataloader/loader.py (modified) (2 diffs)

src/sas/sascalc/dataloader/loader.py

@@ -70 +70 @@
         except NoKnownLoaderException as e:
             pass  # try the ASCII reader
-        except FileContentsException as e:
-            pass
         try:
             ascii_loader = ascii_reader.Reader()
@@ -86 +84 @@
             return cansas_nexus_loader.read(path)
         except FileContentsException:
+            logging.errors("No default loader can load the data")
             # No known reader available. Give up and throw an error
             msg = "\n\tUnknown data format: %s.\n\tThe file is not a " % path
-            msg += "known format that can be loaded by SasView."
-            raise NoKnownLoaderException(msg)
+            msg += "known format that can be loaded by SasView.\n"
+            msg += "Traceback:\n%s" % e.message
+            raise NoKnownLoaderException, msg
 
     def find_plugins(self, dir):