没有简单的方法，但是您可以从存储桶所在的区域（get_bucket_location），存储桶名称和存储键构造URL ：
bucket_name = "my-aws-bucket"
key = "upload-file"
s3 = boto3.resource('s3')
bucket = s3.Bucket(bucket_name)
bucket.upload_file("upload.txt", key)
location = boto3.client('s3').get_bucket_location(Bucket=bucket_name)['LocationConstraint']
url = "https://s3-%s.amazonaws.com/%s/%s" % (location, bucket_name, key)
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