# HG changeset patch
# User Pulkit Goyal <7895pulkit@gmail.com>
# Date 1522927815 -19800
# Node ID 87c4253bebdbe35682228dff8694ef4bf6e19837
# Parent  b23e3cc1afd43f9aa0be426724d84e4a61fdf592
py3: suppress the output of open() using `and None`

This patch suppresses the output of open() on Python 3 as it does not return any
output on Python 2.

This makes test-diffstat.t pass on Python 3.5

Differential Revision: https://phab.mercurial-scm.org/D3128

diff -r b23e3cc1afd4 -r 87c4253bebdb tests/test-diffstat.t
--- a/tests/test-diffstat.t	Thu Apr 05 16:56:34 2018 +0530
+++ b/tests/test-diffstat.t	Thu Apr 05 17:00:15 2018 +0530
@@ -35,7 +35,7 @@
 
   $ hg ci -m appenda
 
-  >>> open("c", "wb").write(b"\0")
+  >>> open("c", "wb").write(b"\0") and None
   $ touch d
   $ hg add c d
 
@@ -54,7 +54,7 @@
 
   $ hg ci -m createb
 
-  >>> open("file with spaces", "wb").write(b"\0")
+  >>> open("file with spaces", "wb").write(b"\0") and None
   $ hg add "file with spaces"
 
 Filename with spaces diffstat: