When X(S)-Python-Version or debian/pyversions is not present, do not

describe them as missing, just indicate they are not there

debian/changelog

 python-defaults (2.7.5-1) UNRELEASED; urgency=low
 
+  [ Matthias Klose ]
   * Bump version to 2.7.5.
   * Drop python2.6 as a supported python version.
   * Bump standards version to 3.9.4.
   * Start building the libpython-stdlib, libpython-all-dev, libpython-all-dbg
     packages.
 
+  [ Scott Kitterman ]
+  * When X(S)-Python-Version or debian/pyversions is not present, do not
+    describe them as missing, just indicate they are not there
+
  -- Matthias Klose <doko@debian.org>  Wed, 15 May 2013 21:55:11 +0200
 
 python-defaults (2.7.3-13) experimental; urgency=low

debian/pyversions.py

@@ -278,11 +278,11 @@ def extract_pyversion_attribute(fn, pkg):
     if pkg == 'Source':
         if sversion == None:
             raise MissingVersionValueError, \
-                  'missing X(S)-Python-Version in control file'
+                  'no X(S)-Python-Version in control file'
         return sversion
     if version == None:
         raise MissingVersionValueError, \
-              'missing XB-Python-Version for package `%s' % pkg
+              'no XB-Python-Version for package `%s' % pkg
     return version
 
 # compatibility functions to parse debian/pyversions