diff -Naur nanopb/CMakeLists.txt nanopb-fix/CMakeLists.txt
--- nanopb/CMakeLists.txt	2021-03-22 08:50:07.000000000 -0400
+++ nanopb-fix/CMakeLists.txt	2022-06-24 16:17:09.130783413 -0400
@@ -41,7 +41,7 @@
 if(nanopb_BUILD_GENERATOR)
     set(generator_protos nanopb plugin)
 
-    find_package(PythonInterp 2.7 REQUIRED)
+    find_package(PythonInterp 3.7 REQUIRED)
     execute_process(
         COMMAND ${PYTHON_EXECUTABLE} -c
             "from distutils import sysconfig; print(sysconfig.get_python_lib(prefix=''))"