nonsquares.py

# pip3 install exifread && python3 nonsquares.py ~/Pictures | xargs rm -f
import os
import sys

import exifread


def main(basedir):
    for dirpath, _, filenames in os.walk(basedir):
        for name in filenames:
            if not name.endswith('.jpg'):
                continue
            filename = os.path.join(dirpath, name)
            with open(filename, 'rb') as f:
                tags = exifread.process_file(f)
                if 'EXIF ExifImageLength' not in tags:
                    print('No EXIF data for {}'.format(filename), file=sys.stderr)
                    continue
                if tags['EXIF ExifImageLength'] != tags['EXIF ExifImageWidth']:
                    print(filename)


if __name__ == '__main__':
    main(sys.argv[1])