Connecting to PostgreSQL using pyodbc

问题

I have a PostgreSQL running on localhost. I have psqlODBC Driver installed. Now when I try to connect to the server using pyodbc as:

import pyodbc
connection = pyodbc.connect("DRIVER={psqlOBDC};SERVER=localhost;DATABASE=weather;UID=postgres;PWD=password")

but I get this error:

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
pyodbc.Error: ('08001', '[08001] Already connected. (202) (SQLDriverConnect)')

Whats the problem?

Thanks.

回答1:

Of course you must install ODBC driver. I don't know Mac, but in Windows there is ODBC Manager where you configure Data Sources. For PostgreSQL driver there is also "Test" button to check if connection can be established.

As fog noticed you can also use other technology to connect to PostgreSQL. If you can use Jython then you can use JDBC driver. There are also native drivers like psycopg, PyGreSQL and pg8000 (pure Python). Can you give them try?

来源：https://stackoverflow.com/questions/10827471/connecting-to-postgresql-using-pyodbc