suggest --install-layout=deb

debian/changelog

-python-defaults (2.6.5-4) UNRELEASED; urgency=low
+python-defaults (2.6.5-4) unstable; urgency=low
 
   [ Piotr Ożarowski ]
   * dh_python2:
@@ -11,7 +11,7 @@ python-defaults (2.6.5-4) UNRELEASED; urgency=low
   * Additonal Python 3 related policy changes:
     - Clarify that helper specific policy does not apply to Python 3
 
- -- Piotr Ożarowski <piotr@debian.org>  Sun, 20 Jun 2010 16:13:24 -0400
+ -- Piotr Ożarowski <piotr@debian.org>  Mon, 21 Jun 2010 23:50:22 +0200
 
 python-defaults (2.6.5-3) unstable; urgency=low
 

dh_python2

@@ -89,6 +89,9 @@ def fix_locations(package):
                               'found in two locations:\n %s\n %s',
                               ver, location, found_versions[ver])
                     exit(2)
+                log.info('Python %s should install files in %s. '
+                         'Did you forget "--install-layout=deb"?',
+                         ver, sitedir(version))
                 if not isdir(dstdir):
                     os.makedirs(dstdir)
                 # TODO: what about relative symlinks?