Need help checking the validity of an image file in Python

0 votes

Hi all, with regard to the above question I am making use of the Python Image Library (PIL).

Check out this code:

from PIL import Image
    # exec some code
except IOError:
    # filename not an image file

I am already aware that this is more than enough for multiple file types but my question is that if I have file types such as PSD, SVG or even XCF then these are not being detected for some reason.

PSD files actually throw the OverflowError exception for this and all I want to know is if there is a way which involves me including these files as well?

All help appreciated, cheers!

Jan 18, 2019 in Python by Anirudh
• 2,080 points

1 answer to this question.

0 votes

I went through the Python documentation and I found that the built-in imghdr module can be used for this. 

This is what I found from the official docs:
"The imghdr module determines the type of image contained in a file or byte stream."

And check out the code to see it in action:

>>> import imghdr
>>> imghdr.what('/tmp/bass')

So, in my opinion, using a module is really much recommended instead of implementing the same functionality again.

Hope this helped!

answered Jan 18, 2019 by Nymeria
• 3,560 points

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