use correct version number for python package

python/setup.py.in

@@ -3,8 +3,8 @@ from setuptools import setup, find_packages
 setup(name="dune.istl",
     namespace_packages=['dune'],
     description="Python lib for dune: dune-alugrid library",
-    version="${DUNE_PYTHON_VERSION}",
-    author="Robert Kloefkorn, Martin Alkaemper, Andreas Dedner and Martin Nolte",
+    version="${DUNE_ISTL_VERSION}",
+    author="Andreas Dedner and Martin Nolte",
     packages = find_packages(),
     zip_safe = 0,
     package_data = {'': ['*.so']}