diff -r 030d558c6456 -r 5abc47d4ca6b tests/test-notify.t
--- a/tests/test-notify.t	Tue Sep 18 22:40:03 2018 -0400
+++ b/tests/test-notify.t	Tue Sep 18 23:47:21 2018 -0400
@@ -190,7 +190,7 @@
 of the very long subject line
 pull (minimal config)
 
-  $ hg --traceback --cwd b pull ../a | $PYTHON $TESTTMP/filter.py
+  $ hg --traceback --cwd b pull ../a | "$PYTHON" $TESTTMP/filter.py
   pulling from ../a
   searching for changes
   adding changesets
@@ -249,7 +249,7 @@
 
   $ hg --cwd b rollback
   repository tip rolled back to revision 0 (undo pull)
-  $ hg --traceback --cwd b pull ../a  | $PYTHON $TESTTMP/filter.py
+  $ hg --traceback --cwd b pull ../a  | "$PYTHON" $TESTTMP/filter.py
   pulling from ../a
   searching for changes
   adding changesets
@@ -297,7 +297,7 @@
 
   $ hg --cwd b rollback
   repository tip rolled back to revision 0 (undo pull)
-  $ hg --traceback --config notify.maxdiffstat=1 --cwd b pull ../a | $PYTHON $TESTTMP/filter.py
+  $ hg --traceback --config notify.maxdiffstat=1 --cwd b pull ../a | "$PYTHON" $TESTTMP/filter.py
   pulling from ../a
   searching for changes
   adding changesets
@@ -348,7 +348,7 @@
   (branch merge, don't forget to commit)
   $ hg ci -m merge -d '3 0'
   $ cd ..
-  $ hg --traceback --cwd b pull ../a | $PYTHON $TESTTMP/filter.py
+  $ hg --traceback --cwd b pull ../a | "$PYTHON" $TESTTMP/filter.py
   pulling from ../a
   searching for changes
   adding changesets
@@ -412,9 +412,9 @@
   > EOF
   $ echo a >> a/a
   $ hg --cwd a --encoding utf-8 commit -A -d '0 0' \
-  >   -m `$PYTHON -c 'print "\xc3\xa0\xc3\xa1\xc3\xa2\xc3\xa3\xc3\xa4"'`
+  >   -m `"$PYTHON" -c 'print "\xc3\xa0\xc3\xa1\xc3\xa2\xc3\xa3\xc3\xa4"'`
   $ hg --traceback --cwd b --encoding utf-8 pull ../a | \
-  >   $PYTHON $TESTTMP/filter.py
+  >   "$PYTHON" $TESTTMP/filter.py
   pulling from ../a
   searching for changes
   adding changesets
@@ -455,7 +455,7 @@
   > test = False
   > mbox = mbox
   > EOF
-  $ $PYTHON -c 'open("a/a", "ab").write("no" * 500 + "\xd1\x84" + "\n")'
+  $ "$PYTHON" -c 'open("a/a", "ab").write("no" * 500 + "\xd1\x84" + "\n")'
   $ hg --cwd a commit -A -m "long line"
   $ hg --traceback --cwd b pull ../a
   pulling from ../a
@@ -467,7 +467,7 @@
   new changesets a846b5f6ebb7
   notify: sending 2 subscribers 1 changes
   (run 'hg update' to get a working copy)
-  $ $PYTHON $TESTTMP/filter.py < b/mbox
+  $ "$PYTHON" $TESTTMP/filter.py < b/mbox
   From test@test.com ... ... .. ..:..:.. .... (re)
   MIME-Version: 1.0
   Content-Type: text/plain; charset="*" (glob)
@@ -527,7 +527,7 @@
   (branches are permanent and global, did you want a bookmark?)
   $ echo a >> a/a
   $ hg --cwd a ci -m test -d '1 0'
-  $ hg --traceback --cwd b pull ../a | $PYTHON $TESTTMP/filter.py
+  $ hg --traceback --cwd b pull ../a | "$PYTHON" $TESTTMP/filter.py
   pulling from ../a
   searching for changes
   adding changesets
@@ -557,7 +557,7 @@
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ echo a >> a/a
   $ hg --cwd a ci -m test -d '1 0'
-  $ hg --traceback --cwd b pull ../a | $PYTHON $TESTTMP/filter.py
+  $ hg --traceback --cwd b pull ../a | "$PYTHON" $TESTTMP/filter.py
   pulling from ../a
   searching for changes
   adding changesets
@@ -586,7 +586,7 @@
   $ mv "$HGRCPATH.new" $HGRCPATH
   $ echo a >> a/a
   $ hg --cwd a commit -m 'default template'
-  $ hg --cwd b pull ../a -q | $PYTHON $TESTTMP/filter.py
+  $ hg --cwd b pull ../a -q | "$PYTHON" $TESTTMP/filter.py
   MIME-Version: 1.0
   Content-Type: text/plain; charset="us-ascii"
   Content-Transfer-Encoding: 7bit
@@ -615,7 +615,7 @@
   > EOF
   $ echo a >> a/a
   $ hg --cwd a commit -m 'with style'
-  $ hg --cwd b pull ../a -q | $PYTHON $TESTTMP/filter.py
+  $ hg --cwd b pull ../a -q | "$PYTHON" $TESTTMP/filter.py
   MIME-Version: 1.0
   Content-Type: text/plain; charset="us-ascii"
   Content-Transfer-Encoding: 7bit
@@ -638,7 +638,7 @@
   > EOF
   $ echo a >> a/a
   $ hg --cwd a commit -m 'with template'
-  $ hg --cwd b pull ../a -q | $PYTHON $TESTTMP/filter.py
+  $ hg --cwd b pull ../a -q | "$PYTHON" $TESTTMP/filter.py
   MIME-Version: 1.0
   Content-Type: text/plain; charset="us-ascii"
   Content-Transfer-Encoding: 7bit