Remove unused imports in IPython.lib

IPython/lib/inputhook.py

@@ -417,7 +417,6 b' class InputHookManager(object):'
         IPython.
 
         """
-        import pyglet
         from IPython.lib.inputhookpyglet import inputhook_pyglet
         self.set_inputhook(inputhook_pyglet)
         self._current_gui = GUI_PYGLET

IPython/lib/inputhookglut.py

@@ -33,7 +33,6 b' import os'
 import sys
 import time
 import signal
-import OpenGL
 import OpenGL.GLUT as glut
 import OpenGL.platform as platform
 from timeit import default_timer as clock

IPython/lib/inputhookpyglet.py

@@ -21,7 +21,6 b' Authors'
 #-----------------------------------------------------------------------------
 
 import os
-import signal
 import sys
 import time
 from timeit import default_timer as clock

IPython/lib/inputhookqt4.py

@@ -18,7 +18,6 b' Author: Christian Boos'
 
 import os
 import signal
-import time
 import threading
 
 from IPython.core.interactiveshell import InteractiveShell

IPython/lib/tests/test_backgroundjobs.py

@@ -14,7 +14,6 b''
 from __future__ import print_function
 
 # Stdlib imports
-import sys
 import time
 
 # Third-party imports
@@ -22,7 +21,6 b' import nose.tools as nt'
 
 # Our own imports
 from IPython.lib import backgroundjobs as bg
-from IPython.testing import decorators as dec
 
 #-----------------------------------------------------------------------------
 # Globals and constants

IPython/lib/tests/test_deepreload.py

@@ -6,7 +6,6 b''
 #-----------------------------------------------------------------------------
 
 import os
-import sys
 
 import nose.tools as nt
 

IPython/lib/tests/test_display.py

@@ -15,7 +15,6 b''
 from __future__ import print_function
 from tempfile import NamedTemporaryFile, mkdtemp
 from os.path import split
-from os import sep
 
 # Third-party imports
 import nose.tools as nt

IPython/lib/tests/test_imports.py

@@ -10,4 +10,4 b' def test_import_demo():'
     from IPython.lib import demo
 
 def test_import_irunner():
-    from IPython.lib import demo
+    from IPython.lib import irunner