Change from LBYL to EAFP style.

[yuvallanger]

http://docs.quantifiedcode.com/python-anti-patterns/readability/asking_for_permission_instead_of_forgiveness_when_working_with_files.html
https://docs.python.org/3/glossary.html#term-eafp
https://docs.python.org/3/glossary.html#term-lbyl

[NotAFile]

IMO, list.get() is superior to either method.

[yuvallanger]

There is no `get` method to the `list` type. Maybe you'd like the following: ``` argv_dict = dict(enumerate(argv)) host = argv_dict.get(1) username = argv_dict.get(2) password = argv_dict.get(3) if host is None: host = get_input("Host (ex: http://localhost:8008 ): ") if username is None: username = get_input("Username: ") if password is None: password = getpass() # Hide user input ```

…

On 10 April 2018 at 18:00, NotAFile ***@***.***> wrote: IMO, list.get() is superior to either method. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#188 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAgvKnHgDNGuQ0OQgzZCeeQlkdYu5i7-ks5tnMkTgaJpZM4TC1y9> .

[non-Jedi]

This looks like marginal readability improvement to me. Sign-off per contributing.rst, and I can merge.

[non-Jedi]

LGTM. Thanks!