Which of the ways to assign values ​​by condition is correct?

Question

Python

Again, controversy about the cleanliness of the code. What code snippet is the most acceptable and why? :)
Option 1

if 'token' in params:
    _token = params['token']
else:
    _token = config.token

Option 2

_token = config.token
if 'token' in params:
    _token = params['token']

Option 3

_token = params['token'] if 'token' in params else config.token

I like the second option the most :)
Thank you for your help!