--- a/tests/test-bad-pull.t	Thu Jun 15 14:22:39 2017 -0400
+++ b/tests/test-bad-pull.t	Tue Jun 20 09:45:02 2017 -0400
@@ -7,7 +7,7 @@
   $ test -d copy
   [1]
 
-  $ python "$TESTDIR/dumbhttp.py" -p $HGPORT --pid dumb.pid
+  $ $PYTHON "$TESTDIR/dumbhttp.py" -p $HGPORT --pid dumb.pid
   $ cat dumb.pid >> $DAEMON_PIDS
   $ hg clone http://localhost:$HGPORT/foo copy2
   abort: HTTP Error 404: * (glob)