[radarhere]

#2449 added

x_resolution = self._getexif()[0x011A]
self.info["dpi"] = x_resolution[0] / x_resolution[1]

to handle Tests/images/photoshop-200dpi.jpg.

However, https://web.archive.org/web/20230619074419/https://www.awaresystems.be/imaging/tiff/tifftags/xresolution.html says that this RATIONAL tag has a count of 1, not 2.

Exif doesn't even report the test image as returning a tuple anymore.

>>> from PIL import Image
>>> im = Image.open("Tests/images/photoshop-200dpi.jpg")
>>> im.getexif()[0x011A]
200.0

When did this change? #4637, which

changes RATIONALs to be read as IFDRationals, instead of a tuple with (numerator, denominator).

So support for XResolution tuples is no longer required, and neither do we need to catch the ZeroDivisionError from #2667