--- a/smc_chk	2021-07-02 12:23:56.000000000 +0200
+++ b/smc_chk	2021-07-16 14:48:40.988000000 +0200
@@ -108,7 +108,7 @@
 }
 
 function is_python3_available() {
-   if ! which python3 >/dev/null; then
+   if ! which /usr/libexec/platform-python >/dev/null; then
       echo "Error: python3 is not available";
       signal_handler;
    fi
@@ -124,7 +124,7 @@
    port6=`get_free_port $(expr $port + 1)`;
    srv=`mktemp /tmp/echo-srv.XXXXXX`;
    cat <<-EOF > $srv
-#!/usr/bin/env python3
+#!/usr/libexec/platform-python
 
 import argparse
 import signal
@@ -171,7 +171,7 @@
    is_python3_available;
    clt=`mktemp /tmp/echo-clt.XXXXXX`;
    cat <<-EOF > $clt
-#!/usr/bin/env python3
+#!/usr/libexec/platform-python
 
 import argparse
 import socket