Hello @cadawg the issue could nor be replicated in my Ubuntu 16.04.3 LTS as you can see the pic below :
After checking in the logcat you provided , i believe there is actually something wrong with your network as it shows time out.
Anyway thanks for the contribution if the issue still shows ,you could submit it to github .
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RE: Steem-Python: AttributeError: 'bool' object has no attribute 'close'