How can i pass configuration variable values into the pyodbc connect command?

问题

I have a .ini(configuration file) where i have mentioned the server name, Database Name, UserName and Password with which i can connect my app to the MSSQL

self.db = pyodbc.connect('driver={SQL Server};server=homeserver;database=testdb;uid=home;pwd=1234')

corresponding data mentioned above connect statement is now in config.ini ` self.configwrite = ConfigParser.RawConfigParser() configread = SafeConfigParser() configread.read('config.ini')

driver = configread.get('DataBase Settings','Driver')
server = str(configread.get('DataBase Settings','Server'))
db = str(configread.get('DataBase Settings','Database'))
user = str(configread.get('DataBase Settings','Username'))
password = str(configread.get('DataBase Settings','Password'))'

How will i pass these variables in the pyodbc connect statement

i tired this self.db = pyodbc.connect('driver={Driver};server=server;database=db;uid=user;pwd=password') getting error.

回答1:

self.db = pyodbc.connect('driver={%s};server=%s;database=%s;uid=%s;pwd=%s' % ( driver, server, db, user, password ) )

%s is used to include variables into the string

the variables are placed into the string according to their order after the %

回答2:

Other options for the connect function:

# using keywords for SQL Server authentication
self.db = pyodbc.connect(driver=driver, server=server, database=db,
                         user=user, password=password)

# using keywords for Windows authentication
self.db = pyodbc.connect(driver=driver, server=server, database=db,
                         trusted_connection='yes')    

来源：https://stackoverflow.com/questions/10084969/how-can-i-pass-configuration-variable-values-into-the-pyodbc-connect-command