如何在Django的views函数中调用lambda函数？

Question

我有一个Django视图来创建一种AWS包（包含帐户和新的vpc创建），我试图调用它之间的lambda函数，它将删除新创建的帐户中的默认vpc。这是我的片段：

   def createlab(request):
     if request.method == 'POST':
       lab_name = request.POST.get('labname')
       cidr = request.POST.get('cidr')
       bill = request.POST.get('budget')
       email = request.POST.get('email')

       #CREATE ACCOUNT
       org = boto3.client('organizations')
       acc = org.create_account(
        Email=email,
        AccountName=lab_name,
        IamUserAccessToBilling='ALLOW'
       )
       time.sleep(35)
       cid = acc['CreateAccountStatus']['Id']

       #GET ACCOUNT DETAILS
       status = org.describe_create_account_status(
        CreateAccountRequestId=cid
     )
       print(status)
       time.sleep(17)
       while True:
        status = org.describe_create_account_status(CreateAccountRequestId=cid)
         try:
           accid = status['CreateAccountStatus']['AccountId']
           break
         except KeyError:
           time.sleep(40)
           accid = status['CreateAccountStatus']['State']
       #CREATE VPC
       session = 
         boto3.Session 
          (aws_access_key_id=acc_key, 
          aws_secret_access_key=sec_key,aws_session_token=token)
       ec2 = session.resource('ec2',region_name=region_ec2_sub)
       vpc = ec2.create_vpc(CidrBlock=cidr)
       id = vpc.id
      #DELETE DEFAULT VPC
      client = boto3.client('lambda',region_name='us-west-2')
      deletevpc= 
       client.invoke(FunctionName='default_vpc', 
       InvocationType='RequestResponse')
      print (deletevpc)

我已经包含了一部分我的观点功能。我最后添加了#DELETE DEFAULT VPC片段。 lambda函数没有被执行。我在这里做错了什么？