Python字典操作and通过ftp上传文件

def ac_upgrade_ftp(self, version=None, ftp_mode=True, ftp_info={}):
    """
    通过ftp获取升级版本文件升级
    :param version: 需要升级的版本文件名称
    :param ftp_mode: True为匿名，false为不匿名，默认为true
    :param ftp_info:
        ftp_ip：必选参数
        ftp_port：必选参数
        ftp_username：ftp_mode不匿名必选
        ftp_password：ftp_mode不匿名必选
    :return:
    """
    ftp_info = {
        'ftp_ip': '192.168.3.35',
        'ftp_port': '23',
        'ftp_username': 'admin',
        'ftp_password': 'Accton123'}
    uti.tab_enter('utilities', 'system_upgrade')
    time.sleep(2)
    ftp_must_param_anymous = ['ftp_ip', 'ftp_port']
    ftp_must_param_user = ['ftp_ip', 'ftp_port', 'ftp_username', 'ftp_password']
    if version is None and ftp_mode is None:
        return
    if ftp_mode:
        print('--------------')
        print(bool(ftp_mode))
        print(ftp_mode)
        for param in ftp_must_param_anymous:
            if param not in ftp_info.keys():
                return
    else:
        print('==============')
        print(bool(ftp_mode))
        print(ftp_mode)
        for param in ftp_must_param_user:
            if param not in ftp_info.keys():
                return
    if ftp_mode:
        self.click(By.XPATH, x_uti_su_up_via_ftp_yes_rd)
        if ftp_info.setdefault('ftp_ip', None) is not None:
            self.ccs(By.XPATH, x_uti_su_up_via_ftp_ip_ip, ftp_info.get('ftp_ip'))
        self.ccs(By.XPATH, x_uti_su_up_via_ftp_port_ip, ftp_info.setdefault('ftp_port', 23))
        self.ccs(By.XPATH, x_uti_su_up_via_ftp_file_ip, version)
    else:
        self.click(By.XPATH, x_uti_su_up_via_ftp_no_rd)
        if ftp_info.setdefault('ftp_ip', None) is not None:
            self.ccs(By.XPATH, x_uti_su_up_via_ftp_ip_ip, ftp_info.get('ftp_ip'))
        self.ccs(By.XPATH, x_uti_su_up_via_ftp_port_ip, ftp_info.setdefault('ftp_port', 23))
        self.ccs(By.XPATH, x_uti_su_up_via_ftp_name_ip, ftp_info.get('ftp_username'))
        self.ccs(By.XPATH, x_uti_su_up_via_ftp_pass_ip, ftp_info.get('ftp_password'))
        self.ccs(By.XPATH, x_uti_su_up_via_ftp_file_ip, version)
    self.click(By.XPATH,x_uti_su_up_via_ftp_upload_rd)
    self.alert_confirm_cancel()