update of beep

lib/core/common.py

@@ -1506,6 +1506,7 @@ def beep():
 
     if sys.platform == 'linux2':
         try:
+            if os.path.exists('/dev/audio'):
                 audio = file('/dev/audio', 'wb')
 
                 for i in xrange(250):
@@ -1513,6 +1514,12 @@ def beep():
                     audio.write(chr(0) * 4)
 
                 audio.close()
+            else:
+                import curses
+
+                curses.initscr()
+                curses.beep()
+                curses.endwin()
         except:
             dataToStdout('\a', True)
     else: