14. Accessing a dictionary value with a default value

Use the dictionary .get method with a supplied default value.

14.1. Don’t do this

d = {
    'username': 'jdoe'
}

is_authorized = False
if 'auth_token' in d:
    is_authorized = True

d = {
    'username': 'jdoe'
}

is_authorized = True if 'auth_token' in d else False

14.2. Do this

d = {
    'username': 'jdoe'
}

is_authorized = d.get('auth_token', False)