今天遇到一个朋友在windows中安装pyodbc成功，在CentOS中安装了，链接数据库的时候发现出现错误：

Linux python3 - Can't open lib 'SQL Server'。

问题很简单，安装pyodbc前你需要安装Microsoft ODBC Driver for SQL Server

[code]

sudo su
zypper ar https://packages.microsoft.com/config/sles/12/prod.repo
exit
sudo ACCEPT_EULA=Y zypper install msodbcsql
# optional: for bcp and sqlcmd
sudo ACCEPT_EULA=Y zypper install mssql-tools
echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bash_profile
echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bashrc
source ~/.bashrc
# optional: for unixODBC development headers
sudo zypper install unixODBC-devel

[/code]

安装后，可以执行pip install pyodbc，并且odbc和pyodbc安装好了，测试一下：

[code]
import pyodbc
server = 'tcp:myserver.database.windows.net'
database = 'mydb'
username = 'myusername'
password = 'mypassword'
cnxn = pyodbc.connect('DRIVER={ODBC Driver 13 for SQL Server};SERVER='+server+';DATABASE='+database+';UID='+username+';PWD='+ password)
cursor = cnxn.cursor()
cursor.execute("SELECT @@version;")
row = cursor.fetchone()
while row:
print row
row = cursor.fetchone()
[/code]