--- a/tests/test-rebase-partial.t	Tue Sep 18 22:40:03 2018 -0400
+++ b/tests/test-rebase-partial.t	Tue Sep 18 23:47:21 2018 -0400
@@ -15,7 +15,7 @@
   > EOF
 
   $ rebasewithdag() {
-  >   N=`$PYTHON -c "print($N+1)"`
+  >   N=`"$PYTHON" -c "print($N+1)"`
   >   hg init repo$N && cd repo$N
   >   hg debugdrawdag
   >   hg rebase "$@" > _rebasetmp