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Python has many modules in its standard library. One that is often overlooked is imghdr which lets you identify what image type that is contained in a file, byte stream or path-like object.
The imghdr can recognize the following image types:
Here is how you would use it imghdr to detect the image type of a file:
>>> import imghdr >>> path = 'python.jpg' >>> imghdr.what(path) 'jpeg' >>> path = 'python.png' >>> imghdr.what(path) 'png'
All you need to do is pass a path to imghdr.what(path) and it will tell you what it thinks the image type is.
An alternative method to use would be to use the Pillow package which you can install with pip if you don't already have it.
Here is how you can use Pillow:
>>> from PIL import Image >>> img = Image.open('/home/mdriscoll/Pictures/all_python.jpg') >>> img.format 'JPEG'
This method is almost as easy as using imghdr. In this case, you need to create an Image object and then call its format attribute. Pillow supports more image types than imghdr, but the documentation doesn't really say if the format attribute will work for all those image types.
Anyway, I hope this helps you in identifying the image type of your files.
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