username requires quotes

[agt24]

I needed to put my username in single quotes in order to get get_token_example.py to work (see below). Not sure if there's something unique to my environment, but it might be worth including a note in the README.

`
(awscli) [adamt@felix python]$ python get_token_example.py
Enter your NIMH Data Archives username:adamt
Traceback (most recent call last):
File "get_token_example.py", line 6, in
username = input('Enter your NIMH Data Archives username:')
File "", line 1, in
NameError: name 'adamt' is not defined
(awscli) [adamt@felix python]$

(awscli) [adamt@felix python]$ python get_token_example.py
Enter your NIMH Data Archives username:'adamt'
Enter your NIMH Data Archives password:
aws_access_key_id=XXX
aws_secret_access_key=XXX
security_token=XXX
expiration=2018-05-03T04:04:48-04:00

(awscli) [adamt@felix python]$
`

[devjason]

Thanks for the feedback! Python is attempting to automatically eval what is read here which is causing the NameError, the current example script is mixing Python 3 and 2 concepts (raw_input from 2 was renamed to input in 3 in PEP 3111).

In Python 2 environments you can replace input with raw_input to prevent this problem and avoid having to quote your username.