[mplayer] Modernize

youtube_dl/downloader/mplayer.py

@@ -1,7 +1,10 @@
+from __future__ import unicode_literals
+
 import os
 import subprocess
 
 from .common import FileDownloader
+from ..compat import compat_subprocess_get_DEVNULL
 from ..utils import (
     encodeFilename,
 )
@@ -13,19 +16,23 @@ class MplayerFD(FileDownloader):
         self.report_destination(filename)
         tmpfilename = self.temp_name(filename)
 
-        args = ['mplayer', '-really-quiet', '-vo', 'null', '-vc', 'dummy', '-dumpstream', '-dumpfile', tmpfilename, url]
+        args = [
+            'mplayer', '-really-quiet', '-vo', 'null', '-vc', 'dummy',
+            '-dumpstream', '-dumpfile', tmpfilename, url]
         # Check for mplayer first
         try:
-            subprocess.call(['mplayer', '-h'], stdout=(open(os.path.devnull, 'w')), stderr=subprocess.STDOUT)
+            subprocess.call(
+                ['mplayer', '-h'],
+                stdout=compat_subprocess_get_DEVNULL(), stderr=subprocess.STDOUT)
         except (OSError, IOError):
-            self.report_error(u'MMS or RTSP download detected but "%s" could not be run' % args[0])
+            self.report_error('MMS or RTSP download detected but "%s" could not be run' % args[0])
             return False
 
         # Download using mplayer.
         retval = subprocess.call(args)
         if retval == 0:
             fsize = os.path.getsize(encodeFilename(tmpfilename))
-            self.to_screen(u'\r[%s] %s bytes' % (args[0], fsize))
+            self.to_screen('\r[%s] %s bytes' % (args[0], fsize))
             self.try_rename(tmpfilename, filename)
             self._hook_progress({
                 'downloaded_bytes': fsize,
@@ -35,6 +42,6 @@ class MplayerFD(FileDownloader):
             })
             return True
         else:
-            self.to_stderr(u"\n")
-            self.report_error(u'mplayer exited with code %d' % retval)
+            self.to_stderr('\n')
+            self.report_error('mplayer exited with code %d' % retval)
             return False