clean up imports

IPython/core/tests/test_prefilter.py

@@ -6,7 +6,6 b''
 import nose.tools as nt
 
 from IPython.core.prefilter import AutocallChecker
-from IPython.testing import decorators as dec
 from IPython.testing.globalipapp import get_ipython
 
 #-----------------------------------------------------------------------------

IPython/kernel/tests/test_launcher.py

@@ -20,7 +20,6 b' Authors'
 import nose.tools as nt
 
 # Our own imports
-from IPython.testing import decorators as dec
 from IPython.kernel.launcher import swallow_argv
 
 #-----------------------------------------------------------------------------

IPython/nbconvert/filters/tests/test_strings.py

@@ -15,7 +15,6 b' Module with tests for Strings'
 #-----------------------------------------------------------------------------
 import os
 
-from IPython.testing import decorators as dec
 from ...tests.base import TestsBase
 from ..strings import (wrap_text, html2text, add_anchor, strip_dollars, 
     strip_files_prefix, get_lines, comment_lines, ipython2python, posix_path,

IPython/parallel/tests/test_magics.py

@@ -17,19 +17,14 b' Authors:'
 #-------------------------------------------------------------------------------
 
 import re
-import sys
 import time
 
-import zmq
-from nose import SkipTest
 
 from IPython.testing import decorators as dec
 from IPython.utils.io import capture_output
 
 from IPython import parallel  as pmod
-from IPython.parallel import error
 from IPython.parallel import AsyncResult
-from IPython.parallel.util import interactive
 
 from IPython.parallel.tests import add_engines
 

IPython/parallel/tests/test_view.py

@@ -22,10 +22,8 b' import platform'
 import time
 from collections import namedtuple
 from tempfile import mktemp
-from StringIO import StringIO
 
 import zmq
-from nose import SkipTest
 from nose.plugins.attrib import attr
 
 from IPython.testing import decorators as dec
@@ -34,7 +32,6 b' from IPython.utils.io import capture_output'
 from IPython import parallel  as pmod
 from IPython.parallel import error
 from IPython.parallel import AsyncResult, AsyncHubResult, AsyncMapResult
-from IPython.parallel import DirectView
 from IPython.parallel.util import interactive
 
 from IPython.parallel.tests import add_engines
@@ -241,7 +238,7 b' class TestView(ClusterTestCase):'
     @skip_without('numpy')
     def test_scatter_gather_numpy(self):
         import numpy
-        from numpy.testing.utils import assert_array_equal, assert_array_almost_equal
+        from numpy.testing.utils import assert_array_equal
         view = self.client[:]
         a = numpy.arange(64)
         view.scatter('a', a, block=True)
@@ -279,7 +276,7 b' class TestView(ClusterTestCase):'
     def test_apply_numpy(self):
         """view.apply(f, ndarray)"""
         import numpy
-        from numpy.testing.utils import assert_array_equal, assert_array_almost_equal
+        from numpy.testing.utils import assert_array_equal
         
         A = numpy.random.random((100,100))
         view = self.client[-1]
@@ -367,7 +364,7 b' class TestView(ClusterTestCase):'
     @skip_without('numpy')
     def test_scatter_gather_numpy_nonblocking(self):
         import numpy
-        from numpy.testing.utils import assert_array_equal, assert_array_almost_equal
+        from numpy.testing.utils import assert_array_equal
         a = numpy.arange(64)
         view = self.client[:]
         ar = view.scatter('a', a, block=False)

IPython/testing/ipunittest.py

@@ -37,7 +37,6 b' from __future__ import absolute_import'
 
 # Stdlib
 import re
-import sys
 import unittest
 from doctest import DocTestFinder, DocTestRunner, TestResults