--- a/tests/test-parseindex.t	Tue Sep 18 22:40:03 2018 -0400
+++ b/tests/test-parseindex.t	Tue Sep 18 23:47:21 2018 -0400
@@ -61,7 +61,7 @@
   > for r in cl:
   >     print(short(cl.node(r)))
   > EOF
-  $ $PYTHON test.py
+  $ "$PYTHON" test.py
   2 revisions:
   7c31755bf9b5
   26333235a41c
@@ -74,7 +74,7 @@
 
   $ cd a
 
-  $ $PYTHON <<EOF
+  $ "$PYTHON" <<EOF
   > from __future__ import print_function
   > from mercurial import changelog, vfs
   > cl = changelog.changelog(vfs.vfs('.hg/store'))
@@ -137,7 +137,7 @@
   $ hg clone --pull -q --config phases.publish=False ../a segv
   $ rm -R limit/.hg/cache segv/.hg/cache
 
-  $ $PYTHON <<EOF
+  $ "$PYTHON" <<EOF
   > data = open("limit/.hg/store/00changelog.i", "rb").read()
   > for n, p in [(b'limit', b'\0\0\0\x02'), (b'segv', b'\0\x01\0\0')]:
   >     # corrupt p1 at rev0 and p2 at rev1
@@ -188,13 +188,13 @@
   >         print(inst)
   > EOF
 
-  $ $PYTHON test.py limit/.hg/store
+  $ "$PYTHON" test.py limit/.hg/store
   reachableroots: parent out of range
   compute_phases_map_sets: parent out of range
   index_headrevs: parent out of range
   find_gca_candidates: parent out of range
   find_deepest: parent out of range
-  $ $PYTHON test.py segv/.hg/store
+  $ "$PYTHON" test.py segv/.hg/store
   reachableroots: parent out of range
   compute_phases_map_sets: parent out of range
   index_headrevs: parent out of range