pip 错误：找不到与 google-api-python-client 匹配的分发版

Question

我正在遵循这篇关于 Firebase 和 Google App Engine 的博文中概述的步骤

https://firebase.googleblog.com/2017/03/how-to-schedule-cron-jobs-with-cloud.html

当我尝试运行时：

pip install -t lib -r requirements.txt

我收到以下错误：

Could not fetch URL https://pypi.python.org/simple/google-api-python-client/: There was a problem confirming the ssl certificate: [SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version (_ssl.c:661) - skipping
  Could not find a version that satisfies the requirement google-api-python-client (from -r requirements.txt (line 1)) (from versions: )
No matching distribution found for google-api-python-client (from -r requirements.txt (line 1))
You are using pip version 9.0.1, however version 9.0.3 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

我在 mac 上。

关于如何纠正这个问题的任何想法？

谢谢！

编辑：仅供参考：requirements.txt 的全部内容很简单：

google-api-python-client

从这里：https : //github.com/firebase/functions-cron/tree/master/appengine

Answer 1

尝试使用 pip 直接安装它：

pip install google-api-python-client

这对我有用。