def main(args):
public_key = fetch_public_key(args.repo)<EOL>password = args.password or getpass('<STR_LIT>')<EOL>update_travis_deploy_password(encrypt(public_key, password.encode()))<EOL>print("<STR_LIT>")<EOL>
Add a PyPI password to .travis.yml so that Travis can deploy to PyPI.

    Fetch the Travis public key for the repo, and encrypt the PyPI password
    with it before adding, so that only Travis can decrypt and use the PyPI
    password.