diff -r 3fcaf0f660ce -r 10b17ed9b591 mercurial/commands.py
--- a/mercurial/commands.py	Tue Dec 20 00:02:24 2016 +0530
+++ b/mercurial/commands.py	Tue Dec 20 00:20:07 2016 +0530
@@ -1889,7 +1889,7 @@
 
     # Python
     fm.write('pythonexe', _("checking Python executable (%s)\n"),
-             sys.executable)
+             pycompat.sysexecutable)
     fm.write('pythonver', _("checking Python version (%s)\n"),
              ("%d.%d.%d" % sys.version_info[:3]))
     fm.write('pythonlib', _("checking Python lib (%s)...\n"),