我想從Teradata實例中提取數據。客戶端代碼在AWS EC2實例上運行Python2.7 +。Python連接到AWS EC2中的Teradata
我安裝unixODBC驅動程序和sudo pip install teradata
,但我仍然得到以下異常:
File "/usr/local/lib/python2.7/site-packages/teradata/tdodbc.py", line 369, in determineDriver
"Available drivers: {}".format(dbType, ",".join(drivers)))
teradata.api.InterfaceError: ('DRIVER_NOT_FOUND', "No driver found for 'Teradata'. Available drivers: PostgreSQL,MySQL")
的代碼如下:
import sys
import teradata
# my own imports
td = TeradataClient(DEFAULT_HOSTNAME, DEFAULT_USERNAME, DEFAULT_PASSWORD)
td.select(query, outfile)
的TeradataClient
類我創建了調用Teradata的是如下:
class TeradataClient:
def __init__(self, hostname, username, password):
self._hostname = hostname
self._username = username
self._password = password
self._udaExec = teradata.UdaExec(appName="MyApp", version="1.0", logConsole=False)
def select(self, query, outfile, sep=DEFAULT_SEPARATOR, nullstr=DEFAULT_NULL_STR):
with self._udaExec.connect(method="odbc", system=self._hostname, username=self._username,
password=self._password) as session:
print 'Connection to Teradata established'
with open(outfile,'w') as fp:
with session.cursor() as cursor:
for row in cursor.execute(query):
lineparts = [str(x if x!=None else nullstr) for x in row]
fp.write('%s\n' %sep.join(lineparts))
我該怎麼辦?這是什麼?是否還需要安裝另一個ODBC驅動程序?
的
system
kwarg也許伯特? [鏈接](https://aws.amazon.com/articles/3998) – JC203已經安裝'boto3'。 – Nik
請張貼嘗試的連接字符串。它可能是一個非常小的語法或缺少的屬性。請添加所有'import'行。 – Parfait