PIL problem

[bfrederi]

On Oct 8, 10:30 am, Marc 'BlackJack' Rintsch <bj_... at gmx.net> wrote:
> On Wed, 08 Oct 2008 08:10:02 -0700, bfrederi wrote:
> > I am having a problem using PIL. I am trying to crop and image to a
> > square, starting from the center of the image, but when I try to crop
> > the image, it won't crop. Here are the relevant code snippets:
>
> > ### Function I am testing ###
> > def create_square_image(file_name):
> >     """ Creates a thumbnail sized image and turns it into a square """
> >     image = Image.open(open(file_name))
>
> >     size_tuple = image.size
> >     width = size_tuple[0]
> >     height = size_tuple[1]
>
> >     square_length = 75
>
> >     x1 = (width / 2) - (square_length / 2) x2 = x1 + square_length
> >     y1 = (height / 2) - (square_length / 2) y2 = y1 + square_length
>
> >     image.crop((x1,y1,x2,y2))
>
> This doesn't change `image` but creates and returns a new cropped image
> which you simply ignore.
>
> >     image.save(file_name, "JPEG")
>
> Ciao,
>         Marc 'BlackJack' Rintsch

How do I output it to an actual file then? Or overwrite the existing
file?