diff --git a/README.rst b/README.rst
index 45de1ff..b8f6717 100644
--- a/README.rst
+++ b/README.rst
@@ -9,13 +9,11 @@ Currently no mac or  python2 support :(
 Installation
 ------------
 
-the old
-
 .. code-block:: bash
 
-  pip3 install system_hotkey
+  pip install . --user
 
-should do the trick
+in the root folder
 
 Windows
 ^^^^^^^
diff --git a/system_hotkey/system_hotkey.py b/system_hotkey/system_hotkey.py
index 1283ca0..ac33ae6 100644
--- a/system_hotkey/system_hotkey.py
+++ b/system_hotkey/system_hotkey.py
@@ -2,7 +2,7 @@
 import _thread as thread
 import queue
 import time
-import collections
+import collections.abc
 from pprint import pprint
 import struct
 
@@ -61,6 +61,8 @@ class InvalidKeyError(SystemHotkeyError):pass
         '7':0x37,
         '8':0x38,
         '9':0x39,
+        "grave": 0xC0,
+        "`": 0xC0,
         "up": win32con.VK_UP
         , "kp_up": win32con.VK_UP
         , "down": win32con.VK_DOWN
@@ -125,7 +127,6 @@ class InvalidKeyError(SystemHotkeyError):pass
         , "f23": win32con.VK_F23
         , "f24": win32con.VK_F24
         , "media_play_pause": win32con.VK_MEDIA_PLAY_PAUSE
-        , "media_stop": win32con.VK_MEDIA_STOP
         , "media_next": win32con.VK_MEDIA_NEXT_TRACK
         , "media_previous": win32con.VK_MEDIA_PREV_TRACK
         }
@@ -285,7 +286,7 @@ def register(self, hotkey, *args, callback=None, overwrite=False):
 
         thread safe
         '''
-        assert isinstance(hotkey, collections.Iterable) and type(hotkey) not in (str, bytes)
+        assert isinstance(hotkey, collections.abc.Iterable) and type(hotkey) not in (str, bytes)
         if self.consumer == 'callback' and not callback:
             raise TypeError('Function register requires callback argument in non sonsumer mode')