diff -ru mathgl-2.4.1/lang/python3/CMakeLists.txt mathgl-2.4.1_patched/lang/python3/CMakeLists.txt
--- mathgl-2.4.1/lang/python3/CMakeLists.txt	2018-07-04 14:53:42.165822142 +0200
+++ mathgl-2.4.1_patched/lang/python3/CMakeLists.txt	2018-07-04 14:53:26.941745985 +0200
@@ -12,10 +12,10 @@
 SET_SOURCE_FILES_PROPERTIES(../mathgl.i ../numpy.i PROPERTIES CPLUSPLUS ON)
 
 if(enable-python)
-	set(Python_ADDITIONAL_VERSIONS 3.6)
+	set(Python_ADDITIONAL_VERSIONS 3.7)
 	unset(PYTHONINTERP_FOUND)
 	unset(PYTHON_EXECUTABLE CACHE)
-	FIND_PACKAGE(PythonInterp 3.6 REQUIRED)
+	FIND_PACKAGE(PythonInterp 3.7 REQUIRED)
 	if(NOT PYTHONINTERP_FOUND)
 		message(SEND_ERROR "Couldn't find python interpreter.")
 	endif(NOT PYTHONINTERP_FOUND)
@@ -28,7 +28,7 @@
 	unset(PYTHONLIBS_VERSION_STRING CACHE)
 	unset(PYTHON_LIBRARY CACHE)
 	unset(PYTHON_INCLUDE_DIR CACHE)
-	FIND_PACKAGE(PythonLibs 3.6)
+	FIND_PACKAGE(PythonLibs 3.7)
 	if(NOT PYTHONLIBS_FOUND)
 		message(SEND_ERROR "Couldn't find python development libraries.")
 	endif(NOT PYTHONLIBS_FOUND)
@@ -67,7 +67,7 @@
 
 	install(FILES ${MathGL2_BINARY_DIR}/lang/python3/mathgl.py DESTINATION ${MGL_PYTHON_SITE_PACKAGES})
 # harcoded for now. another way is to make glob search on *pyc in __pycache__ dir
-	install(FILES ${MathGL2_BINARY_DIR}/lang/python3/__pycache__/mathgl.cpython-36.pyc DESTINATION ${MGL_PYTHON_SITE_PACKAGES}/__pycache__)
+	install(FILES ${MathGL2_BINARY_DIR}/lang/python3/__pycache__/mathgl.cpython-37.pyc DESTINATION ${MGL_PYTHON_SITE_PACKAGES}/__pycache__)
 	install (TARGETS _mathglp3 LIBRARY DESTINATION ${MGL_PYTHON_SITE_PACKAGES})
 	set(mgl_clean_files ${mgl_clean_files} mathgl.py)
 endif(enable-python)