如何从 python 函数 return 整个列表

Question

我有一个小脚本如下：

import boto3
ACCESS_KEY= "XXXXXXXXXXXXX"
SECRET_KEY= "XXXXXXXXXXXX"
regions = ['us-east-1','us-west-1','us-west-2','eu-west-1','sa-east-1','ap-southeast-1','ap-southeast-2','ap-northeast-1']
for region in regions:
  client = boto3.client('ec2',aws_access_key_id=ACCESS_KEY,aws_secret_access_key=SECRET_KEY,region_name=region,)
  addresses_dict = client.describe_addresses()
  for eip_dict in addresses_dict['Addresses']:
     print eip_dict['PublicIp']

这段代码工作正常并打印出来自所有区域的所有 EIP 的列表，现在我正在尝试在我的另一个脚本中使用上面的代码，使用的函数如下：

def gather_public_ip():
   ACCESS_KEY = config.get('aws','access_key')
   SECRET_KEY = config.get('aws','secret_key')
   regions = ['us-east-1','us-west-1','us-west-2','eu-west-1','sa-east-1','ap-southeast-1','ap-southeast-2','ap-northeast-1']
   all_EIP = []
   for region in regions:
      client = boto3.client('ec2',aws_access_key_id=ACCESS_KEY,aws_secret_access_key=SECRET_KEY,region_name=region,)
      addresses_dict = client.describe_addresses()
      for eip_dict in addresses_dict['Addresses']:
          print eip_dict['PublicIp']
          all_EIP.append(eip_dict['PublicIp'])
          return all_EIP

但这仅在第一次迭代后中断（它只打印一个 IP）并且不会 return 整个列表给调用者 ，我正在调用上面的函数来自 __main__ 如下：

       net_range =  gather_public_ip()
       r = s.run(net_range)
       s.save()   # save

基本上我想将 return 的 ip 列表传递给 run()。有人能帮我吗？

Answer 1

你 return 你 all_EIP 在嵌套 for 循环的第一次迭代中。缩进 return 以便它在外部 for 之后执行，您应该拥有所有应该附加的内容。

def gather_public_ip():
   ACCESS_KEY = config.get('aws','access_key')
   SECRET_KEY = config.get('aws','secret_key')
   regions = ['us-east-1','us-west-1','us-west-2','eu-west-1','sa-east-1','ap-southeast-1','ap-southeast-2','ap-northeast-1']
   all_EIP = []
   for region in regions:
      client = boto3.client('ec2',aws_access_key_id=ACCESS_KEY,aws_secret_access_key=SECRET_KEY,region_name=region,)
      addresses_dict = client.describe_addresses()
      for eip_dict in addresses_dict['Addresses']:
          print eip_dict['PublicIp']
          all_EIP.append(eip_dict['PublicIp'])
   return all_EIP

如何从 python 函数 return 整个列表

How to return the whole list from a python function

python

boto3