CMake: update path to install python bindings

Python libs should be installed in "lib/python2.7" instead of
"lib/python2.7.x".

src/CMakeLists.txt

@@ -106,14 +106,15 @@ if(SWIG_FOUND)
 
 			# Install python interface
 			set(AVTRANSCODER_PYTHON_BINDING_FILE "${CMAKE_SWIG_OUTDIR}/avtranscoder.py")
-			set(AVTRANSCODER_PYTHON_MODULE_OUTPUT_DIR "lib/python${PYTHONLIBS_VERSION_STRING}/site-packages/pyAvTranscoder/")
+			string(SUBSTRING ${PYTHONLIBS_VERSION_STRING} 0 3 PYTHON_VERSION)
+			set(AVTRANSCODER_PYTHON_MODULE_OUTPUT_DIR "lib/python${PYTHON_VERSION}/site-packages/pyAvTranscoder/")
 			install(
 				FILES ${AVTRANSCODER_PYTHON_BINDING_FILE} ${AVTRANSCODER_PYTHON_INIT_FILE}
 				DESTINATION ${AVTRANSCODER_PYTHON_MODULE_OUTPUT_DIR}
 				OPTIONAL
 			)
 			# Install python lib and __init__.py files
-			install(TARGETS ${SWIG_MODULE_avtranscoder-py_REAL_NAME} DESTINATION "lib/python${PYTHONLIBS_VERSION_STRING}/site-packages/pyAvTranscoder/" OPTIONAL)
+			install(TARGETS ${SWIG_MODULE_avtranscoder-py_REAL_NAME} DESTINATION ${AVTRANSCODER_PYTHON_MODULE_OUTPUT_DIR} OPTIONAL)
 			install(CODE "file(WRITE ${CMAKE_INSTALL_PREFIX}/${AVTRANSCODER_PYTHON_MODULE_OUTPUT_DIR}/__init__.py)")
 		else()
 			message("PYTHON not found, will not build python binding.")

tools/travis.python.nosetests.sh

@@ -2,7 +2,7 @@
 
 # Get avtranscoder library
 export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:${DEPENDENCY_INSTALL}/lib
-export PYTHONPATH=${AVTRANSCODER_INSTALL}/lib/python2.7.6/site-packages/:$PYTHONPATH
+export PYTHONPATH=${AVTRANSCODER_INSTALL}/lib/python2.7/site-packages/:$PYTHONPATH
 
 # Get assets
 git clone https://github.com/avTranscoder/avTranscoder-data.git