通過pycharm下載第三方模塊，SSL錯誤解決辦法

例如在pycharm下載six這個模塊，提示如下

Collecting six

  Could not fetch URL https://pypi.python.org/simple/six/: 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 six (from versions: )

No matching distribution found for six

直接在終端pip install six，提示的錯誤是一樣的。

解決辦法，根據錯誤信息直接去官網https://pypi.python.org/simple/six/下載，下載的包裏會有setup.py然後在pycharm的終端執行python setup.py install。即可