Index: Lib/pkgutil.py
===================================================================
--- Lib/pkgutil.py	(révision 88710)
+++ Lib/pkgutil.py	(copie de travail)
@@ -519,7 +519,12 @@
         # XXX This may still add duplicate entries to path on
         # case-insensitive filesystems
         initfile = os.path.join(subdir, init_py)
-        if subdir not in path and os.path.isfile(initfile):
+        initfilec = initfile + 'c'
+        initfileo = initfile + 'o'
+        if subdir not in path and (
+                os.path.isfile(initfile) or
+                os.path.isfile(initfilec) or
+                os.path.isfile(initfileo)):
             path.append(subdir)
         # XXX Is this the right thing for subpackages like zope.app?
         # It looks for a file named "zope.app.pkg"