python - 使用boto的DynamoDB2而非DynamoDB的连接错误

我正在迁移一些代码以使用Boto的DynamoDB2库，但在与boot.dynamodb2连接时遇到了麻烦。但是，原始的boto连接工作正常。

我正在使用Boto版本2.32.0和python 2.7.3

import boto
import boto.dynamodb2
from boto.dynamodb2.table import Table

access_id = '-------------' # removed
secrey_key = '--------------' # removed

tablename = 'test'
lookup = 'hash1'

conn = boto.connect_dynamodb(aws_access_key_id=access_id, aws_secret_access_key=secret_key)
table1 = conn.get_table(tablename)
item1 = table1.get_item(lookup)
print "DB1 item :: ", item1

conn2 = boto.dynamodb2.connect_to_region('us-east-1', aws_access_key_id=access_id, aws_secret_access_key=secret_key)
table2 = Table(tablename)
item2 = table2.get_item(hashkey=lookup)
print "DB2 item :: ", item2

这是输出。请注意，该项目是由较早的dynamo调用返回的，而不是由boto.dynamodb2版本返回的。

DB1 item ::  {'hashkey': 'hash1', 'value': 1}
Traceback (most recent call last):
  File "bototest.py", line 18, in <module>
    item2 = table2.get_item(hashkey=lookup)
  File "/usr/local/lib/python2.7/dist-packages/boto-2.31.0-py2.7.egg/boto/dynamodb2/table.py", line 502, in get_item
    consistent_read=consistent
  File "/usr/local/lib/python2.7/dist-packages/boto-2.31.0-py2.7.egg/boto/dynamodb2/layer1.py", line 911, in get_item
    body=json.dumps(params))
  File "/usr/local/lib/python2.7/dist-packages/boto-2.31.0-py2.7.egg/boto/dynamodb2/layer1.py", line 2100, in make_request
    retry_handler=self._retry_handler)
  File "/usr/local/lib/python2.7/dist-packages/boto-2.31.0-py2.7.egg/boto/connection.py", line 940, in _mexe
    status = retry_handler(response, i, next_sleep)
  File "/usr/local/lib/python2.7/dist-packages/boto-2.31.0-py2.7.egg/boto/dynamodb2/layer1.py", line 2143, in _retry_handler
    data)
boto.exception.JSONResponseError: JSONResponseError: 400 Bad Request
{u'message': u'The security token included in the request is invalid.', u'__type': u'com.amazon.coral.service#UnrecognizedClientException'}

最佳答案

创建表对象时必须提供连接：

table2 = Table(tablename, connection=conn2)

关于python - 使用boto的DynamoDB2而非DynamoDB的连接错误，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/25633641/