changed groupname to use isoformat timestamp

devices/statistics_writer/hdf5_writer.py

@@ -133,9 +133,7 @@ class hdf5_writer:
         """
 
         # create the new hdf5 group based on the timestamp of packets
-        current_group = self.file.create_group("{}_{}".format(self.mode, self.current_timestamp.strftime("%Y-%m-%d-%H-%M-%S-%f")[:-3]))
-        # TODO: change and verify this change. This would make the timestamps a lot more consistent
-        # current_group = self.file.create_group("{}_{}".format(self.mode, self.current_timestamp.isoformat(timespec="milliseconds")))
+        current_group = self.file.create_group("{}_{}".format(self.mode, self.current_timestamp.isoformat(timespec="milliseconds")))
 
         # store the statistics values for the current group
         self.store_function(current_group)