remove nose tools from test_editorhooks

IPython/lib/tests/test_editorhooks.py

@@ -2,8 +2,6 b''
 import sys
 from unittest import mock
 
-import nose.tools as nt
-
 from IPython import get_ipython
 from IPython.lib import editorhooks
 
@@ -20,15 +18,15 b' def test_install_editor():'
     with mock.patch('subprocess.Popen', fake_popen):
         get_ipython().hooks.editor('the file', 64)
     
-    nt.assert_equal(len(called), 1)
-    args = called[0]['args']
-    kwargs = called[0]['kwargs']
-    
-    nt.assert_equal(kwargs, {'shell': True})
-    
-    if sys.platform.startswith('win'):
-        expected = ['foo', '-l', '64', '-f', 'the file']
+    assert len(called) == 1
+    args = called[0]["args"]
+    kwargs = called[0]["kwargs"]
+
+    assert kwargs == {"shell": True}
+
+    if sys.platform.startswith("win"):
+        expected = ["foo", "-l", "64", "-f", "the file"]
     else:
         expected = "foo -l 64 -f 'the file'"
     cmd = args[0]
-    nt.assert_equal(cmd, expected)
+    assert cmd == expected