Comment 7 for bug 1088771

reopening the precise task for python-defaults due to the regression introduced by the current fix as reported in bug 1167177

Eyeing the code, I suspect the following patch might do the trick. Untested!

--- python-defaults-2.7.3/debian/control.in 2012-04-17 14:50:47.000000000 +0000
+++ python-defaults-2.7.3/debian/control.in 2013-03-20 17:55:59.000000000 +0000
@@ -54,7 +56,7 @@
 Package: python-dev
 Architecture: any
 Depends: ${misc:Depends}, python (= ${binary:Version}), @PVER@-dev (>= @PREVVER@)
-Replaces: python2.7 (<< 2.7.3), python2.7-dev (<< 2.7.3-0ubuntu3.2)
+Replaces: python2.7 (<< 2.7.3-0ubuntu3.2), python2.7-dev (<< 2.7.3-0ubuntu3.2)
 Description: header files and a static library for Python (default)
  Header files, a static library and development tools for building
  Python modules, extending the Python interpreter or embedding Python