From 51443412a0ca4ff4a1b6368f81afbe89fc6362be Mon Sep 17 00:00:00 2001
From: rdw <rdw@reimplemented.lindenlab.com>
Date: Thu, 25 Sep 2008 19:03:34 -0700
Subject: [PATCH] Added more information to api import exception handling. 
 Port of http://svn.secondlife.com/trac/eventlet/changeset/147

---
 eventlet/api.py | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/eventlet/api.py b/eventlet/api.py
index 0a2aa4a..3dfdb9e 100644
--- a/eventlet/api.py
+++ b/eventlet/api.py
@@ -574,22 +574,24 @@ def named(name):
     """
     toimport = name
     obj = None
+    import_err_strings = []
     while toimport:
         try:
             obj = __import__(toimport)
             break
         except ImportError, err:
             # print 'Import error on %s: %s' % (toimport, err)  # debugging spam
+            import_err_strings.append(err.__str__())
             toimport = '.'.join(toimport.split('.')[:-1])
     if obj is None:
-        raise ImportError('%s could not be imported' % (name, ))
+        raise ImportError('%s could not be imported.  Import errors: %r' % (name, import_err_strings))
     for seg in name.split('.')[1:]:
         try:
             obj = getattr(obj, seg)
         except AttributeError:
             dirobj = dir(obj)
             dirobj.sort()
-            raise AttributeError('attribute %r missing from %r (%r) %r' % (
-                seg, obj, dirobj, name))
+            raise AttributeError('attribute %r missing from %r (%r) %r.  Import errors: %r' % (
+                seg, obj, dirobj, name, import_err_strings))
     return obj