Improve error message for old (ASCII) JPK file formats.

Michael Haggerty gave me the name of JPK's upgrade script so we can
point users in the right direction.

diff --git a/hooke/driver/jpk.py b/hooke/driver/jpk.py
index 3cbe1df8a7815f1ab68b04623f27e6f19470e2e7..171ce7ab125d8bbfb214d541fa63d3960a340d75 100644 (file)
--- a/hooke/driver/jpk.py
+++ b/hooke/driver/jpk.py
@@ -281,4 +281,7 @@ class JPKDriver (Driver):
         return info
 
     def _read_old(self, path, info):
-        raise NotImplementedError('No old-style JPK files were available for testing, please send us yours: %s' % path)
+        raise NotImplementedError(
+            "Early JPK files (pre-zip) are not supported by Hooke.  Please "
+            "use JPK's `out2jpk-force` script to convert your old files "
+            "to a more recent format before loading them with Hooke.")