Boto3 - 描述Redshift

Question

我有以下代码，但它会抛出错误：

import boto3
import json
import string

client = boto3.client('redshift', 'us-east-1')
cluster_list = client.describe_clusters()

result = [{"{#REDSHIFT}": row['Clusters'][0]['Endpoint']['Address']} for row in client.describe_clusters()]
result = {"data": result}
json_pre = json.dumps(result)
json_pos = json_pre.translate(None, string.whitespace)
print json_pos

但我有以下错误：

第8行，

result = [{"{#REDSHIFT}": row['Clusters'][0]['Endpoint']['Address']} for row in client.describe_clusters()]
TypeError: string indices must be integers

我想返回['Clusters'][0]['Endpoint']['Address']的值来生成Json。

Answer 1

正确的代码在这里：

import boto3
import json
import string

client = boto3.client('redshift', 'us-east-1')
cluster_list = client.describe_clusters()

result = [{"{#REDSHIFT}": red['Endpoint']['Address']} for red in cluster_list['Clusters']]
result = {"data": result}
json_pre = json.dumps(result)
json_pos = json_pre.translate(None, string.whitespace)
print json_pos