--- a/copasi/bindings/python/CMakeLists.txt.orig	2020-08-07 00:20:53.000000000 +0200
+++ b/copasi/bindings/python/CMakeLists.txt	2020-11-12 14:39:19.557471979 +0100
@@ -147,3 +147,3 @@
 if (UNIX OR CYGWIN) 
-  execute_process(COMMAND "${PYTHON_EXECUTABLE}" -c "import sys;import platform; sys.stdout.write(platform.python_version()[:3])"
+  execute_process(COMMAND "${PYTHON_EXECUTABLE}" -c "import sys;import platform; sys.stdout.write('{}.{}'.format(*platform.python_version_tuple()[:2]))"
     OUTPUT_VARIABLE PYTHON_VERSION)