Reading image dimensions before it is loaded from a web form using python.

Evan Klitzke evan at
Sun Jul 1 00:13:01 CEST 2007

On 6/30/07, Norman Khine <norman at> wrote:
> Hello,
> I am writing an application using python that allows the user to upload
> an image to a folder on the server.
> Is there a way to get the size of the file before it has been uploaded
> onto the server and give an error if the size does not comply to the
> maximum size.

The easiest way to do this is to simply restrict the maximum file
upload size. When the client makes the POST request you can see how
big it will be. This won't really give you the image dimensions of
course, but there's no simple way to find out that information without
uploading the entire image.

Evan Klitzke <evan at>

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