Ask password if not found in keyring

ask_pass_if_not_saved.py

from getpass import getpass
try:
    import keyring

    def get_passwd(address, username):
        passwd = keyring.get_password(address, username)
        if passwd is None:
            passwd = getpass('Password for %s: ' % address)
            keyring.set_password(address, username, passwd)
        return passwd

except ImportError:

    def get_passwd(address, username):
        return getpass('Password for %s: ' % address)