diff --git a/hurricane/src/isobar/CMakeLists.txt.backup b/hurricane/src/isobar/CMakeLists.txt.backup
deleted file mode 100644
index dd0210e6..00000000
--- a/hurricane/src/isobar/CMakeLists.txt.backup
+++ /dev/null
@@ -1,43 +0,0 @@
-INCLUDE_DIRECTORIES(${PYTHON_INCLUDE_PATH} ${HURRICANE_SOURCE_DIR}/src/hurricane)
-
-SET(sources ProxyProperty.cpp PyBox.cpp PyCell.cpp PyCellLocator.cpp
-    PyComponent.cpp PyComponentLocator.cpp PyContact.cpp
-    PyDataBase.cpp PyEntity.cpp PyHorizontal.cpp
-    PyHurricane.cpp PyHyperNet.cpp PyInstance.cpp PyInstanceLocator.cpp
-    PyLayer.cpp PyLibrary.cpp PyName.cpp PyNet.cpp PyNetLocator.cpp
-    PyOccurrence.cpp PyOccurrenceLocator.cpp PyPath.cpp PyPin.cpp PyPinLocator.cpp
-    PyPlug.cpp PyPlugLocator.cpp PyPoint.cpp PyReference.cpp PyReferenceLocator.cpp
-    PySegment.cpp PySegmentLocator.cpp PyTechnology.cpp PyTransformation.cpp
-    PyUnit.cpp PyUpdateSession.cpp PyVertical.cpp 
-)
-
-
-SET(includes ProxyProperty.h PyBox.h PyCell.h PyCellLocator.h
-    PyComponent.h PyComponentLocator.h PyContact.h
-    PyDataBase.h PyEntity.h PyHorizontal.h
-    PyHurricane.h PyHyperNet.h PyInstance.h PyInstanceLocator.h
-    PyLayer.h PyLibrary.h PyName.h PyNet.h PyNetLocator.h
-    PyOccurrence.h PyOccurrenceLocator.h PyPath.h PyPin.h PyPinLocator.h
-    PyPlug.h PyPlugLocator.h PyPoint.h PyReference.h PyReferenceLocator.h
-    PySegment.h PySegmentLocator.h PyTechnology.h PyTransformation.h
-    PyUnit.h PyUpdateSession.h PyVertical.h 
-)
-
-ADD_LIBRARY(isobar SHARED ${sources})
-
-TARGET_LINK_LIBRARIES(isobar hurricane ${PYTHON_LIBRARIES})
-
-SET(source_dir ${HURRICANE_SOURCE_DIR}/src/pyext)
-SET(binary_dir ${HURRICANE_BINARY_DIR}/src/pyext)
-SET(include_dirs ${HURRICANE_SOURCE_DIR}/src/hurricane)
-SET(library_dirs ${HURRICANE_BINARY_DIR}/src/hurricane:${binary_dir})
-
-CONFIGURE_FILE(PyExtensionBuild.conf.in ${binary_dir}/PyExtensionBuild.conf)
-
-ADD_CUSTOM_COMMAND(TARGET isobar POST_BUILD
-           COMMAND cp ${source_dir}/setup.py ${binary_dir}/setup.py
-           COMMAND ${PYTHON_EXECUTABLE} ${binary_dir}/setup.py build
-           --build-base=${binary_dir}
-           DEPENDS ${binary_dir}/PyExtensionBuild.conf)
-
-INSTALL(TARGETS isobar DESTINATION /lib)