DONE / CLOSED - PyCharm "io" is not defined

I´m new to this and I tried to find ways to solve this in the internet or even AI but everything I try is not working.
I am currently trying to substract a picture I put in another picture within the Hex. I am working with PyCharm (Python 3.12) and installed Pillow and pip.

But its telling me:
Traceback (most recent call last):
File “C:\Users\guest\PycharmProjects\PitureProgramming\”, line 10, in
new_image =
File “C:\Users\guest\PycharmProjects\PitureProgramming\venv\Lib\site-packages\PIL\”, line 3305, in open
raise UnidentifiedImageError(msg)
PIL.UnidentifiedImageError: cannot identify image file <_io.BytesIO object at 0x0000023F09B8D3A0>

Here is what I tried to write:

I already (for example) tried from io import BytesIO.

Are you sure that what follows the bytes FF D9 is a JPEG image?

Also, what if those bytes happen occur within the JPEG image itself as part of the image data or metadata?

Please add code as text (see formatted text </>).

Can’t say I’ve ever needed to find the end of the binary stream manually. Doesn’t pillow already do so?

Certainly, once the three lines between the with and the open() have been removed, all is well…

My code wasnt wrong I just forgot to reset the picture (I added text to the bytes before i chose to put a picture in it).
So it wont work if its already been manipulated.
Since you talked about what could be possibly wrong with the picture itself i checked it again in the Hex and then i saw what made it not work. I then deleted the added bytes and now its all fine!
Thank you for your hint.

I found out now. Thank you very much for going through it. Next time something doesnt work i will format the text in </>.