# HG changeset patch
# User Pulkit Goyal <7895pulkit@gmail.com>
# Date 1519722750 -19800
# Node ID 0e8b76644e20323098a57d5ef9c1715b4355476d
# Parent  9ff5cbfbc26accbe9e15475a25f5194a507e82dc
py3: convert os.devnull to bytes using pycompat.bytestr

os.devnull returns str on Python 3.

Differential Revision: https://phab.mercurial-scm.org/D2477

diff -r 9ff5cbfbc26a -r 0e8b76644e20 hgext/convert/common.py
--- a/hgext/convert/common.py	Tue Feb 27 14:41:24 2018 +0530
+++ b/hgext/convert/common.py	Tue Feb 27 14:42:30 2018 +0530
@@ -339,7 +339,7 @@
                 pass
         cmdline = [util.shellquote(arg) for arg in cmdline]
         if not self.ui.debugflag:
-            cmdline += ['2>', os.devnull]
+            cmdline += ['2>', pycompat.bytestr(os.devnull)]
         cmdline = ' '.join(cmdline)
         return cmdline
 
diff -r 9ff5cbfbc26a -r 0e8b76644e20 mercurial/windows.py
--- a/mercurial/windows.py	Tue Feb 27 14:41:24 2018 +0530
+++ b/mercurial/windows.py	Tue Feb 27 14:42:30 2018 +0530
@@ -316,7 +316,7 @@
     # Work around "popen spawned process may not write to stdout
     # under windows"
     # http://bugs.python.org/issue1366
-    command += " 2> %s" % os.devnull
+    command += " 2> %s" % pycompat.bytestr(os.devnull)
     return os.popen(quotecommand(command), mode)
 
 def explainexit(code):