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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def remove_password(entry, username=None):
 """ Removes the password for the specific user in the user's keychain. :param entry: The entry in the keychain. This is a caller specific key. :param username: The username whose password is to be removed. Default is the current user. """


    if username is None:
        username = get_username()

    has_keychain = initialize_keychain()

    if has_keychain:
        try:
            keyring.delete_password(entry, username)
        except Exception as e:
            print e
            log.warn("Unable to delete password in keyring. Continuing..")
            log.debug(e)