python之使用 AWS Lambda (python) 编写 csv 文件并将其保存到 S3_编程设计

我正在尝试使用 AWS Lambda 将 csv 文件写入 S3 存储桶，为此我使用了以下代码:

data=[[1,2,3],[23,56,98]] 
with open("s3://my_bucket/my_file.csv", "w") as f: 
   f.write(data)

这会引发以下错误:

[Errno 2] No such file or directory: u's3://my_bucket/my_file.csv': IOError 
Traceback (most recent call last): 
File "/var/task/lambda_function.py", line 51, in lambda_handler 
with open("s3://my_bucket/my_file.csv", "w") as f: 
IOError: [Errno 2] No such file or directory: u's3://my_bucket/my_file.csv'

请问我可以帮忙吗？

PS:我使用的是python 2.7

提前致谢

请您参考如下方法:

晚回答总比不回答好。在 S3 中获取数据有四个步骤:

调用 S3 存储桶
使用请求库将数据加载到 Lambda 中(如果您没有安装它，则必须将其作为层加载)
将数据写入 Lambda '/tmp' 文件
上传文件到s3

像这样:

import csv 
import requests 
#all other apropriate libs already be loaded in lambda 
 
#properly call your s3 bucket 
s3 = boto3.resource('s3') 
bucket = s3.Bucket('your-bucket-name') 
key = 'yourfilename.txt' 
 
#you would need to grab the file from somewhere. Use this incomplete line below to get started: 
with requests.Session() as s: 
    getfile = s.get('yourfilelocation') 
 
#Only then you can write the data into the '/tmp' folder. 
with open('/tmp/yourfilename.txt', 'w', newline='') as f: 
    w = csv.writer(f) 
    w.writerows(filelist) 
#upload the data into s3 
bucket.upload_file('/tmp/yourfilename.txt', key)

希望对您有所帮助。