To connect to Authorize.net, you can use either a DSN or an ODBC connection string. Both of these methods use the connect function.

Connect to a DSN

To connect using a DSN:

cnxn = pyodbc.connect("DSN=CData AuthorizeNet Sys;User=MyUser;Password=MyPassword")

Provide a Driver Connection String

To connect using an ODBC connection string:

cnxn = pyodbc.connect("DRIVER={CData ODBC Driver for Authorize.net};LoginID=myLoginID;TransactionKey=myTransactionKey")