【问题标题】：How do you upload modified image directly to s3 bucket using python flask如何使用 python flask 将修改后的图像直接上传到 s3 存储桶
【发布时间】：2023-04-03 21:22:01
【问题描述】：

我试图简单地修改通过表单上传的图像（调整大小），然后直接上传到 s3 存储桶。我在下面使用的示例在我将文件保存在本地时有效，但在尝试上传到 s3 时遇到问题。 

 def _image_resize(temp_path, file, image_base, extension):
    image = Image.open(file)
    wpercent = (image_base / float(image.size[0]))
    hsize = int((float(image.size[1]) * float(wpercent)))
    image = image.resize((image_base, hsize), Image.ANTIALIAS)
    modified_file_path = os.path.join(
        temp_path, file.filename + '.' + extension + '.png'
    )
    image.save(modified_file_path)
    with open(modified_file_path, 'rb') as data:
        upload_file_to_s3(data, Config.S3_BUCKET_NAME)
    return

def upload_file_to_s3(file, bucket_name, acl="public-read"):
        """
        Docs: http://boto3.readthedocs.io/en/latest/guide/s3.html
        """

        try:

            s3.upload_fileobj(
                file,
                bucket_name,
                ExtraArgs={
                    "ACL": acl
                }
            )

        except Exception as e:
            print("Something Happened: ", e)
            return e

        return

【问题讨论】：

    标签：
    python
    python-3.x
    amazon-s3
    flask
    python-imaging-library