Comment by TekMol

TFA's use-case for for/else does not convince me:

    for server in servers:
        if server.check_availability():
            primary_server = server  
            break
    else:
        primary_server = backup_server
    deploy_application(primary_server)

As it is shorter to do this:

    primary_server = backup_server
    for server in servers:
        if server.check_availability():
            primary_server = server  
            break
    deploy_application(primary_server)