Remove unused imports in IPython.kernel

IPython/kernel/inprocess/tests/test_kernelmanager.py

@@ -15,7 +15,6 b' import unittest'
 
 # Local imports
 from IPython.kernel.inprocess.blocking import BlockingInProcessKernelClient
-from IPython.kernel.inprocess.ipkernel import InProcessKernel
 from IPython.kernel.inprocess.manager import InProcessKernelManager
 
 #-----------------------------------------------------------------------------

IPython/kernel/ioloop/manager.py

@@ -13,7 +13,6 b''
 
 from __future__ import absolute_import
 
-import zmq
 from zmq.eventloop import ioloop
 from zmq.eventloop.zmqstream import ZMQStream
 

IPython/kernel/ioloop/restarter.py

@@ -17,13 +17,12 b' restarts the kernel if it dies.'
 
 from __future__ import absolute_import
 
-import zmq
 from zmq.eventloop import ioloop
 
 
 from IPython.kernel.restarter import KernelRestarter
 from IPython.utils.traitlets import (
-    Instance, Float, List,
+    Instance,
 )
 
 #-----------------------------------------------------------------------------

IPython/kernel/multikernelmanager.py

@@ -26,7 +26,7 b' import zmq'
 from IPython.config.configurable import LoggingConfigurable
 from IPython.utils.importstring import import_item
 from IPython.utils.traitlets import (
-    Instance, Dict, Unicode, Any, DottedObjectName, Bool
+    Instance, Dict, Unicode, Any, DottedObjectName
 )
 
 #-----------------------------------------------------------------------------

IPython/kernel/tests/test_launcher.py

@@ -16,9 +16,6 b' Authors'
 # Imports
 #-----------------------------------------------------------------------------
 
-# Stdlib imports
-from unittest import TestCase
-
 # Third-party imports
 import nose.tools as nt
 

IPython/kernel/tests/test_message_spec.py

@@ -8,8 +8,6 b''
 #-----------------------------------------------------------------------------
 
 import re
-import sys
-import time
 from subprocess import PIPE
 from Queue import Empty
 
@@ -17,9 +15,7 b' import nose.tools as nt'
 
 from IPython.kernel import KernelManager
 
-
 from IPython.testing import decorators as dec
-from IPython.utils import io
 from IPython.utils.traitlets import (
     HasTraits, TraitError, Bool, Unicode, Dict, Integer, List, Enum, Any,
 )

IPython/kernel/zmq/heartbeat.py

@@ -14,7 +14,6 b''
 
 import os
 import socket
-import sys
 from threading import Thread
 
 import zmq

IPython/kernel/zmq/ipkernel.py

@@ -25,7 +25,7 b' import uuid'
 
 from datetime import datetime
 from signal import (
-        signal, getsignal, default_int_handler, SIGINT, SIG_IGN
+        signal, default_int_handler, SIGINT
 )
 
 # System library imports
@@ -37,11 +37,10 b' from zmq.eventloop.zmqstream import ZMQStream'
 from IPython.config.configurable import Configurable
 from IPython.core.error import StdinNotImplementedError
 from IPython.core import release
-from IPython.utils import io
 from IPython.utils import py3compat
 from IPython.utils.jsonutil import json_clean
 from IPython.utils.traitlets import (
-    Any, Instance, Float, Dict, CaselessStrEnum, List, Set, Integer, Unicode,
+    Any, Instance, Float, Dict, List, Set, Integer, Unicode,
     Type
 )
 

IPython/kernel/zmq/log.py

@@ -1,7 +1,5 b''
-import logging
 from logging import INFO, DEBUG, WARN, ERROR, FATAL
 
-import zmq
 from zmq.log.handlers import PUBHandler
 
 class EnginePUBHandler(PUBHandler):

IPython/kernel/zmq/pylab/backend_inline.py

@@ -5,9 +5,6 b''
 #-----------------------------------------------------------------------------
 from __future__ import print_function
 
-# Standard library imports
-import sys
-
 # Third-party imports
 import matplotlib
 from matplotlib.backends.backend_agg import new_figure_manager, FigureCanvasAgg

IPython/kernel/zmq/serialize.py

@@ -15,13 +15,6 b' Authors:'
 # Imports
 #-----------------------------------------------------------------------------
 
-# Standard library imports
-import logging
-import os
-import re
-import socket
-import sys
-
 try:
     import cPickle
     pickle = cPickle

IPython/kernel/zmq/session.py

@@ -44,7 +44,6 b' from zmq.utils import jsonapi'
 from zmq.eventloop.ioloop import IOLoop
 from zmq.eventloop.zmqstream import ZMQStream
 
-from IPython.config.application import Application, boolean_flag
 from IPython.config.configurable import Configurable, LoggingConfigurable
 from IPython.utils import io
 from IPython.utils.importstring import import_item

IPython/kernel/zmq/zmqshell.py

@@ -40,12 +40,12 b' from IPython.kernel import ('
     get_connection_file, get_connection_info, connect_qtconsole
 )
 from IPython.testing.skipdoctest import skip_doctest
-from IPython.utils import io, openpy
+from IPython.utils import openpy
 from IPython.utils.jsonutil import json_clean, encode_images
 from IPython.utils.process import arg_split
 from IPython.utils import py3compat
 from IPython.utils.traitlets import Instance, Type, Dict, CBool, CBytes
-from IPython.utils.warn import warn, error
+from IPython.utils.warn import error
 from IPython.kernel.zmq.displayhook import ZMQShellDisplayHook
 from IPython.kernel.zmq.datapub import ZMQDataPublisher
 from IPython.kernel.zmq.session import extract_header

IPython/utils/pickleutil.py

@@ -30,6 +30,7 b' try:'
 except:
     numpy = None
 
+import codeutil  # This registers a hook when it's imported
 import py3compat
 from importstring import import_item