Complete output from command python setup.py egg_info:
    sh: 1: MysqL_config: not found
    Traceback (most recent call last):
      File "<string>",line 1,in <module>
      File "/tmp/pip-build-4mLxpd/MysqL-python/setup.py",line 17,in <module>
        Metadata,options = get_config()
      File "/tmp/pip-build-4mLxpd/MysqL-python/setup_posix.py",line 43,in get_config
        libs = MysqL_config("libs_r")
      File "/tmp/pip-build-4mLxpd/MysqL-python/setup_posix.py",line 25,in MysqL_config
        raise EnvironmentError("%s not found" % (MysqL_config.path,))
    EnvironmentError: MysqL_config not found

解决办法：

sudo apt-get install libMysqLclient-dev

sudo updatedb
locate MysqL_config