twitter - 无法获取 OAuth 2 访问令牌

Question

我正在开发基于 python 2.7 的 GUI 来阅读推文。

当我通过 Eclipse 和 PyDev 运行脚本时，一切正常。但在使用 gui2exe/py2exe 编译后，我收到以下错误消息：

twython.exceptions.TwythonAuthError: Unable to obtain OAuth 2 access token

代码是：

CONSUMER_KEY = '****'
    CONSUMER_SECRET = '****'
    ACCESS_KEY = '****'
    ACCESS_SECRET = '****'
    twitter = Twython(CONSUMER_KEY, CONSUMER_SECRET, oauth_version=2)
    ACCESS_TOKEN = twitter.obtain_access_token()
    if settings.value("Proxys").toBool() == True:
        httpproxy = settings.value ("HttpProxy").toString()
        httpsproxy = settings.value ("HttpsProxy").toString()
        proxystring = "'http': '%s','https': '%s'" % (httpproxy, httpsproxy)
        client_args = {
                       'proxies': {
                                   proxystring,
                                   }
                       }
        self.api = Twython(CONSUMER_KEY, access_token=ACCESS_TOKEN, client_args=client_args)
    else:
        self.api = Twython(CONSUMER_KEY, access_token=ACCESS_TOKEN)

任何人都可以帮忙吗？