参考文章：
​​​https://github.com/pymssql/pymssql/issues/396​​​
​​​https://github.com/pymssql/pymssql/issues/400​​​
​​​https://github.com/pymssql/pymssql/issues/399​​​
​​​https://stackoverflow.com/questions/36352728/importerror-dll-load-failed-when-trying-to-import-pymssql-on-windows
​​

测试代码：
# -*- coding:utf-8 -*-
import pymssql

conn = pymssql.connect(host='192.168.15.11', port='2250', user='sa', password='123456', database='XXX', charset="utf8")

print conn

错误提示：

C:\Python27>python.exe test.py

Traceback (most recent call last):

  File "test.py", line 2, in <module>

    import pymssql

  File "_mssql.pxd", line 10, in init pymssql (pymssql.c:12429)

ImportError: DLL load failed: 找不到指定的程序。

错误原因：

解决方法：

安装2.1.1版本即可 

pip install "pymssql==2.1.1"

​​ https://pypi.python.org/pypi/pymssql/2.1.1 ​​