首次在mac os 下，用pip install?MySQL-Python時經常出現如下錯誤：
```
sh: mysql_config: command not found
Traceback (most recent call last):
File "setup.py", line 15, in
metadata, options = get_config()
File "/Users/***/Downloads/MySQL-python-1.2.3/setup_posix.py",
line 43, in get_config
libs = mysql_config("libs_r")
File "/Users/***/Downloads/MySQL-python-1.2.3/setup_posix.py",
line 24, in mysql_config
raise EnvironmentError("%s not found" % (mysql_config.path,))
EnvironmentError: mysql_config not found
```
解決辦法：
1.從MySQL官網下載并安裝MySQL? https://dev.mysql.com/downloads/mysql/
2.在終端terminal中cd 到虛擬環境并啟動虛擬環境
在虛擬環境中修改環境變量
(venv)$PATH="$PATH":/usr/local/mysql/bin
3.重啟終端，進去虛擬環境并輸入
pip install mysql-python
安裝完成
