使用Python从AWS S3下载文件 [英] Download file from AWS S3 using Python

问题描述

我正在尝试使用以下代码将文件从Amazon S3存储桶下载到本地，但是出现错误消息无法找到凭证"

I am trying to download a file from Amazon S3 bucket to my local using the below code but I get an error saying "Unable to locate credentials"

以下是我编写的代码:

from boto3.session import Session
import boto3

ACCESS_KEY = 'ABC'
SECRET_KEY = 'XYZ'

session = Session(aws_access_key_id=ACCESS_KEY,
              aws_secret_access_key=SECRET_KEY)
s3 = session.resource('s3')
your_bucket = s3.Bucket('bucket_name')

for s3_file in your_bucket.objects.all():
    print(s3_file.key) # prints the contents of bucket

s3 = boto3.client ('s3')

s3.download_file('your_bucket','k.png','/Users/username/Desktop/k.png')

有人可以帮我这个忙吗?谢谢.

Could anyone help me on this. Thanks.

推荐答案

您没有使用创建的会话来下载文件，而是使用了创建的s3客户端.如果要使用客户端，则需要指定凭据.

You are not using the session you created to download the file, you're using s3 client you created. If you want to use the client you need to specify credentials.

your_bucket.download_file('k.png', '/Users/username/Desktop/k.png')

或

s3 = boto3.client('s3', aws_access_key_id=... , aws_secret_access_key=...)
s3.download_file('your_bucket','k.png','/Users/username/Desktop/k.png')

这篇关于使用Python从AWS S3下载文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！