hetept/data.py: support the change git-svn-id: svn+ssh://asterix/home/subversion/stephan/solo/eda/python@6738 bc5caf13-1734-44f8-af43-603852e9ee25
git-svn-id: svn+ssh://asterix/home/subversion/stephan/solo/eda/python@6675 bc5caf13-1734-44f8-af43-603852e9ee25