--- run_tests.orig	2016-11-22 21:25:40.000000000 -0600
+++ run_tests	2022-03-24 00:02:06.000000000 -0500
@@ -4,7 +4,7 @@
     echo $t
     file_type=$(file -b $t)
     case ${file_type} in
-        *[Pp]ython*) python ${t} ;;
+        *[Pp]ython*) @PYTHON@ ${t} ;;
         *Bourne*) bash ${t} ;;
         *bash*)   bash ${t} ;;
         *perl*)   perl ${t} ;;