[nix] fix pep8

Author: sprenger

neo/rawio/nixrawio.py

@@ -52,7 +52,7 @@ def _source_name(self):
     def _parse_header(self):
         self.file = nix.File.open(self.filename, nix.FileMode.ReadOnly)
         signal_channels = []
-        anasig_ids = {0: []} # ids of analogsignals by segment
+        anasig_ids = {0: []}  # ids of analogsignals by segment
         stream_ids = []
         for bl in self.file.blocks:
             for seg in bl.groups:

neo/test/iotest/test_nixio_fr.py

@@ -106,7 +106,7 @@ def test_annotations(self):
             annotations = {'something': 'hello hello000'}
             seg = Segment(**annotations)
             an =AnalogSignal([[1, 2, 3], [4, 5, 6]], units='V',
-                             sampling_rate=1*pq.Hz)
+                             sampling_rate=1 * pq.Hz)
             an.annotate(ansigrandom='hello chars')
             an.array_annotate(custom_id=[1, 2, 3])
             sp = SpikeTrain([3, 4, 5]* s, t_stop=10.0)