我尝试使用终端在MacOS High Sierra 10.13.6上安装熊猫，但无法这样做。 我的Mac使用的默认python版本是python 2.7.12
我已经研究了在Mac上安装熊猫的几种方法，包括
Sudo easy_install pandas and pip install pandas
pip install pandas导致输出此消息：
Collecting pandas
Could not fetch URL https://pypi.python.org/simple/pandas/: There was a problem confirming the ssl certificate: [SSL: TLSV1_ALERT_PROTOCOL_VERSION]
tlsv1 alert protocol version (_ssl.c:590) - skipping
Could not find a version that satisfies the requirement pandas (from versions: )
No matching distribution found for pandas
和sudo easy_install pandas提供了非常相似的消息