Boto + Python + AWS S3：如何获取特定文件的last_modified属性？

Question

很可能得到LAST_MODIFIED属性：

import boto3 

s3 = boto3.resource('s3') 

bucket_name = 'bucket-one' 
bucket = s3.Bucket(bucket_name) 

for obj in bucket.objects.all(): 
    print obj.last_modified 

但它在一个桶中的所有对象这样做。我如何获得桶下一个特定对象/文件的last_modified属性？

Answer 1

bucket_name = 'bucket-one' 
file_name = 'my_file' 

object = s3.Object(bucket_name, file_name) 
print object.last_modified 

或者干脆：

print s3.Object(bucket_name, file_name).last_modified 

Answer 2

希望这有助于你....

这将让特定对象的最后修改时间在S3存储桶

import boto3 
import time 
from pprint import pprint 

s3 = boto3.resource('s3',region_name='S3_BUCKET_REGION_NAME') 
bucket='BUCKET_NAME' 
key='OBJECT_NAME' 
summaryDetails=s3.ObjectSummary(bucket,key) 
timeFormat=summaryDetails.last_modified 
formatedTime=timeFormat.strftime("%Y-%m-%d %H:%M:%S") 
pprint('Bucket name is '+ bucket + ' and key name is ' + key + ' and last modified at time '+ formatedTime) 

谢谢....