As it is mentioned in the error message itself
File “/home/ubuntu/conf.py”, line 1
That means line 1 of your conf.py has the error.
sudo nanoSID = 'You can find.....'
You are supposed to put the SID token from your Twilio dashboard.
And the variable should be defined like below method,
SID = 'Your SID from Twilio Dashboard'
Regarding the SID, Twilio has been taught as well in the training. You are suggested to complete all the training modules serially and thouroughly.
Let me know if you have any other queries.