1、首先是想到用pip來(lái)安裝pymysql

pip install mysql

報(bào)錯(cuò)：

cryptography requires setuptools 18.5 or newer, please upgrade to a

2、我想到的是更新pip

sudo pip install --upgrade pip

其實(shí)需要更新的是setuptools:

sudo pip install -t /usr/local/lib/python3.6/site-packages/ setuptools

3、使用pip將pymysql安裝到想要的地方，針對(duì)多python版本的情況：

安裝到python2.7:

sudo pip install pymysql

安裝到python3.4:

sudo pip install -t /usr/local/lib/python3.4/site-packages/ pymysql

安裝到python3.6:

sudo pip install -t /usr/local/lib/python3.6/site-packages/ pymysql

安裝到虛擬環(huán)境中：

sudo pip install -t ~/Pycharm/py36env/lib/python3.6/site-packages pymysql

報(bào)錯(cuò)：

 Could not fetch URL https://pypi.python.org/simple/requests/: There was a problem confirming the ssl certificate: Can't connect to HTTPS URL because the SSL module is not available. - skipping

解決方式：

sudo pip --trusted-host pypi.python.org install -t ~/PycharmProjects/py36env/lib/python3.6/site-packages/ mysql

問(wèn)題解決。