diff --git a/classes/obmc-phosphor-python3-autotools.bbclass b/classes/obmc-phosphor-python3-autotools.bbclass
index d76598a..89a884a 100644
--- a/classes/obmc-phosphor-python3-autotools.bbclass
+++ b/classes/obmc-phosphor-python3-autotools.bbclass
@@ -1,6 +1,9 @@
 inherit obmc-phosphor-utils
 inherit python3native
 
+OBMC_PYTHON_EXE="python3"
+OBMC_PYTHON_EXE_class-native="nativepython3"
+
 DEPENDS += "python3"
 
 export BUILD_SYS
@@ -15,3 +18,21 @@
         set_append(d, 'FILES_%s' % pkg,
                    d.getVar('PYTHON_SITEPACKAGES_DIR', True))
 }
+
+# python-setuptools does some mangling of the #! in any scripts it installs,
+# which has been reported for years at pypa/setuptools#494.  OE has
+# workarounds in distutils3.bbclass, but we cannot inherit that here because
+# it conflicts with autotools.bbclass.  Port the un-mangling code here.
+#
+# This finds any ${PYTHON} executable path that got put into the scripts
+# and reverts it back to "/usr/bin/env python3".  It also reverts any full
+# ${STAGING_BINDIR_NATIVE} path back to "/usr/bin".
+#
+do_install_append() {
+    for i in ${D}${bindir}/* ${D}${sbindir}/*; do
+        if [ -f "$i" ]; then
+            sed -i -e s:${PYTHON}:${USRBINPATH}/env\ ${OBMC_PYTHON_EXE}:g $i
+            sed -i -e s:${STAGING_BINDIR_NATIVE}:${bindir}:g $i
+        fi
+    done
+}