Current stable version of python is 3.4 (3.4.1 in amd64 stable branch), but java-config 2.2.0 requires one of python2_6 python2_7 python3_2 or python3_3 to be enabled.
this was opened before but was handled in bug 530304 finally :/ *** This bug has been marked as a duplicate of bug 530304 ***