commit 7b0908a8e444d735d459bac7c32566f6f11882fe
author Éric Araujo <merwok@netwok.org> Fri Jul 29 02:32:41 2011 +0200
committer Éric Araujo <merwok@netwok.org> Fri Jul 29 02:32:41 2011 +0200
tree 13d9f1c0d4aae1ad3b0acf8a909e9b69bada5dc0
parent 943006bf68825ea007a1941f8afb09d202868988

Make TypeError message from Command.__init__ more useful

Lib/packaging/command/cmd.py

diff --git a/Lib/packaging/command/cmd.py b/Lib/packaging/command/cmd.py
index fa56aa6..1053ac3 100644
--- a/Lib/packaging/command/cmd.py
+++ b/Lib/packaging/command/cmd.py
@@ -57,7 +57,8 @@
         from packaging.dist import Distribution
 
         if not isinstance(dist, Distribution):
-            raise TypeError("dist must be a Distribution instance")
+            raise TypeError("dist must be an instance of Distribution, not %r"
+                            % type(dist))
         if self.__class__ is Command:
             raise RuntimeError("Command is an abstract class")