Simplify h5py data retrieval (remove [:])

Author: alejoe91

neo/rawio/maxwellrawio.py

@@ -93,14 +93,14 @@ def _parse_header(self):
                 sr = 20000.
                 settings = h5["settings"]
                 if 'lsb' in settings:
-                    gain_uV = settings['lsb'][:][0] * 1e6
+                    gain_uV = settings['lsb'][0] * 1e6
                 else:
                     if "gain" not in settings:
                         print("'gain' amd 'lsb' not found in settings. "
                               "Setting gain to 512 (default)")
                         gain = 512
                     else:
-                        gain = settings['gain'][:][0]
+                        gain = settings['gain'][0]
                     gain_uV = 3.3 / (1024 * gain) * 1e6
                 sigs = h5['sig']
                 mapping = h5["mapping"]
@@ -109,16 +109,16 @@ def _parse_header(self):
                 self._channel_slice = ids
             elif int(version) > 20160704:
                 settings = h5['wells'][stream_id][self.rec_name]['settings']
-                sr = settings['sampling'][:][0]
+                sr = settings['sampling'][0]
                 if 'lsb' in settings:
-                    gain_uV = settings['lsb'][:][0] * 1e6
+                    gain_uV = settings['lsb'][0] * 1e6
                 else:
                     if "gain" not in settings:
                         print("'gain' amd 'lsb' not found in settings. "
                               "Setting gain to 512 (default)")
                         gain = 512
                     else:
-                        gain = settings['gain'][:][0]
+                        gain = settings['gain'][0]
                     gain_uV = 3.3 / (1024 * gain) * 1e6
                 mapping = settings['mapping']
                 sigs = h5['wells'][stream_id][self.rec_name]['groups']['routed']['raw']