couple more PEP8 in test

IPython/core/tests/test_completer.py

@@ -303,15 +303,15 b' def test_default_arguments_from_docstring():'
     c = ip.Completer
     kwd = c._default_arguments_from_docstring(
         'min(iterable[, key=func]) -> value')
-    nt.assert_equal(kwd,['key'])
+    nt.assert_equal(kwd, ['key'])
     #with cython type etc
     kwd = c._default_arguments_from_docstring(
         'Minuit.migrad(self, int ncall=10000, resume=True, int nsplit=1)\n')
-    nt.assert_equal(kwd,['ncall','resume','nsplit'])
+    nt.assert_equal(kwd, ['ncall', 'resume', 'nsplit'])
     #white spaces
     kwd = c._default_arguments_from_docstring(
         '\n Minuit.migrad(self, int ncall=10000, resume=True, int nsplit=1)\n')
-    nt.assert_equal(kwd,['ncall','resume','nsplit'])
+    nt.assert_equal(kwd, ['ncall', 'resume', 'nsplit'])
 
 def test_line_magics():
     ip = get_ipython()