AWS Lambda Boto describe_volumes答案

【问题标题】：AWS Lambda Boto describe_volumesAWS Lambda Boto describe_volumes
【发布时间】：2017-08-23 11:48:51
【问题描述】：

我是 Python 和 Lambda 的新手，我正在尝试获取所有地区的 in-use 卷列表。

from datetime import datetime, date
import boto3

def lambda_handler(event, context):
    ec2 = boto3.client('ec2')

    # Get list of regions
    regions = ec2.describe_regions().get('Regions',[] )

    # Iterate over regions
    for region in regions:
        print "Looking at region %s " % region['RegionName']
        reg=region['RegionName']

        # Connect to region
        ec2 = boto3.client('ec2',region_name=reg)

        # Get all in-use volumes    
        volumes = ec2.describe_volumes( Filters=[{'Name': 'status', 'Values': ['in-use']}])

        for volume in volumes:
            print "Looking at volume %s" % volume['VolumeId']

我不断收到以下错误，无法弄清楚原因：

String indices must be integers, not str: TypeError
Traceback (most recent call last):
  File "/var/task/lambda_function.py", line 22, in lambda_handler
    print "Looking at volume %s" % volume['VolumeId']
TypeError: string indices must be integers, not str

【问题讨论】：

标签： python amazon-web-services aws-lambda boto3

【解决方案1】：

volumes 不是卷的字典。

>>> volumes.keys()
['ResponseMetadata', u'Volumes']

所以你需要遍历volumes['Volumes']。试试这个：

for volume in volumes['Volumes']:
    print "Looking at volume %s" % volume['VolumeId']

输出：

Looking at region ap-south-1
Looking at volume vol-1234853ed7652bbb1
Looking at volume vol-00aac56781f21a83
Looking at region eu-west-2
Looking at region eu-west-1
Looking at region ap-northeast-2
Looking at region ap-northeast-1

【讨论】：