Errno 22无效模式（'rb'）或文件名-Django自定义文件存储

Question

I have overwritten the default file storage in django to save the model image fields in amazon s3.

only the open method is not working as expected, I am getting:

[Errno 22] invalid mode ('rb') or filename: http://image.buzzhearts.com/media/2015/11/12/11/99f0301c46d7945c91b16b0c2d61ab13.jpg

the file is already in s3: http://image.buzzhearts.com/media/2015/11/12/11/99f0301c46d7945c91b16b0c2d61ab13.jpg

code:

class CS3Storage(FileSystemStorage):
    def open(self, name, mode='rb'):
        return File(open(self.path(name), mode)) # <-- problem

    def path(self, name):
        # returns http://image.buzzhearts.com/media/2015/11/12/11/99f0301c46d7945c91b16b0c2d61ab13.jpg
        return 'http://image.buzzhearts.com/%s' % name

what am I missing? I think, I have to first get the image file from s3 with eg requests and then open right?

Answer 1

open() takes a filename, it does not support urls.

If you want to fetch the url, you need to use a library like requests . Since the file is on S3, you could use a tool like boto.

Instead of writing your own file storage, you might find it easier to use django-storages-redux .