python常用包安装错误

1. torndb导入错误

In [1]: import torndb
-------------------------------------------------------
ImportError    Traceback (most recent call last)
<ipython-input-1-d1ba4c7a3e38> in <module>()
----> 1 import torndb
/Users/dkos/.virtualenvs/py35/lib/python3.5/site-packages/torndb.py in <module>()
31
32 try:
---> 33     import MySQLdb.constants
34     import MySQLdb.converters
35     import MySQLdb.cursors

ImportError: No module named 'MySQLdb'

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###解决方法
###########################
$:  pip install mysql-python
$:  pip install mysqlclient