--- a/tests/test-push-warn.t	Thu Jun 15 14:22:39 2017 -0400
+++ b/tests/test-push-warn.t	Tue Jun 20 09:45:02 2017 -0400
@@ -418,7 +418,7 @@
   adding c
   created new head
 
-  $ for i in `python $TESTDIR/seq.py 3`; do hg -R h up -q 0; echo $i > h/b; hg -R h ci -qAm$i; done
+  $ for i in `$PYTHON $TESTDIR/seq.py 3`; do hg -R h up -q 0; echo $i > h/b; hg -R h ci -qAm$i; done
 
   $ hg -R i push h
   pushing to h