So I've found out that I need a frame_id in my imu message to be able to visualize it in RViz, so I've been trying to add a frame_id to the bags I have. When I try reading through the messages in the bag I keep getting an error saying "AttributeError: 'str' object has no attribute 'secs'"
Here is the code and the output from the terminal:
![image description](http://oi60.tinypic.com/2wf4oc0.jpg)
I think I've managed to establish that the issue is to do with the itemiterator (or whatever it's called) t, but I haven't had any luck trying to cast it to the secs type.
Any ideas?
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