使用boto3访问s3存储桶中的特定密钥 [英] Accessing a specific key in a s3 bucket using boto3

问题描述

我正在尝试使用boto3删除s3存储桶中的特定对象.

I am trying to access a specific object in my s3 bucket using boto3 for deletion.

下面的代码来自boto3文档. https://boto3.readthedocs.io/en/Latest/guide/migrations3.html#accessing-a-bucket

the code below is from the boto3 documentation. https://boto3.readthedocs.io/en/latest/guide/migrations3.html#accessing-a-bucket

# Boto 3
for key in bucket.objects.all():
    key.delete()

很棒，但是我宁愿有一个字典引用，然后遍历对象.在扩展方面并不是最大的.

great but i would much rather have a dictionary reference then iterating though objects. That isn't the greatest at scaling.

是否有一种使用其键来抓取对象的方法?

Is there a way to grab an object using its key?

我尝试了此操作，但没有成功.查看对象集合管理器.

I attempted this but it didnt work. Looking through the objects collection manager.

s3 = boto3.resource('s3')
bucket = s3.Bucket(AWS_UPLOAD_BUCKET)
key = bucket.objects.get(key = venueobjects3key)

推荐答案

使用以下代码，我认为它将为您提供帮助

use the below code I think it will help you

S3 = boto3.client(
    's3',
    region_name = 'us-west-2',
    aws_access_key_id = AWS_ACCESS_KEY_ID,
    aws_secret_access_key = AWS_SECRET_ACCESS_KEY
)
#Create a file object using the bucket and object key. 
fileobj = S3.get_object(
    Bucket=<Bucket_Name>,
    Key=<Key_Name>
    ) 
# open the file object and read it into the variable filedata. 
fileData = fileobj['Body'].read()
print(fileData)

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