# HG changeset patch
# User Frederic Bastien <nouiz@nouiz.org>
# Date 1288190215 14400
# Node ID 6bae1852cff441fd8d4a578f3adf9415ba9418f7
# Parent  2b8b991ac5fa23ada7e6efcb90e744a765ea12bb
make version detection work around a strange behavior of imp.find_module

diff -r 2b8b991ac5fa -r 6bae1852cff4 pylearn/version.py
--- a/pylearn/version.py	Wed Oct 27 10:33:16 2010 -0400
+++ b/pylearn/version.py	Wed Oct 27 10:36:55 2010 -0400
@@ -215,11 +215,17 @@
 
 def _import_id(tag):
     try :
-        location = _imp.find_module(tag)
         mod = __import__(tag)
     except ImportError, e: #raise when tag is not found
         return e #put this in the cache, import_id will raise it
-
+    
+    try:
+        location = _imp.find_module(tag)
+    except ImportError, e: #raise when tag is not found
+        #sometimes fin_module raise an ImportError even when we can import it
+        if hasattr(mod,'__version__'):
+            return mod.__version__
+        return e
     #the find_module was successful, location is valid
     resource_type = location[2][2]