How to access -filetype from Python

[wzorn]

This should be an easy question, but I'm scratching my head.  I'm using python to process some image files and I've run across the case where the exiftool will not write metadata to the file because the extension is .jpg, but the filetype (in the metadata) is .png.  So, my approach is to read the filetype metadata and validate that the extensions are correct on my files.

I think I keep looking in the right places I just don't see what I'm looking for.  I think what I need is the [GROUP:]TAG name for it.

[StarGeek]

Are you asking for how to figure out a file type using Python, or how to figure it out running exiftool?

With exiftool, you can check the FileType tag (see the Extra Tags page)

Code Select Expand

C:\>exiftool -G1 -a -s -filetype Y:\!temp\x\y\Green-Crystal.jpg
[File]          FileType                        : PNG
You can correct the extension with the FileTypeExtension tag

Code Select Expand

C:\>exiftool -G1 -a -s -FileTypeExtension Y:\!temp\x\y\Green-Crystal.jpg
[File]          FileTypeExtension               : png

C:\>exiftool -progress "-Filename<%f.$FileTypeExtension" Y:\!temp\x\y\Green-Crystal.jpg
======== Y:/!temp/x/y/Green-Crystal.jpg [1/1]
'Y:/!temp/x/y/Green-Crystal.jpg' --> 'Y:/!temp/x/y/Green-Crystal.png'
    1 image files updated
A pure Python way to do so would be outside the scope of this forum.

[wzorn]

I figured it out.    Yes, I'm trying to do it through python.  It looks like what I needed is File:FileType or File:FileTypeExtension.

Is a list of possible values for those tags somewhere?

[StarGeek]

Use the -listf option.

[wzorn]

Perfect!  Thank you very much.