Merge pull request #6630 from radarhere/exiftags_enum

Author: hugovk

docs/reference/ExifTags.rst

@@ -11,7 +11,7 @@ provide constants and clear-text names for various well-known EXIF tags.
     :type: dict
 
     The TAGS dictionary maps 16-bit integer EXIF tag enumerations to
-    descriptive string names.  For instance:
+    descriptive string names. For instance:
 
         >>> from PIL.ExifTags import TAGS
         >>> TAGS[0x010e]
@@ -20,9 +20,28 @@ provide constants and clear-text names for various well-known EXIF tags.
 .. py:data:: GPSTAGS
     :type: dict
 
-    The GPSTAGS dictionary maps 8-bit integer EXIF gps enumerations to
-    descriptive string names.  For instance:
+    The GPSTAGS dictionary maps 8-bit integer EXIF GPS enumerations to
+    descriptive string names. For instance:
 
         >>> from PIL.ExifTags import GPSTAGS
         >>> GPSTAGS[20]
         'GPSDestLatitude'
+
+
+These values are also exposed as ``enum.IntEnum`` classes.
+
+.. py:data:: Base
+
+    >>> from PIL.ExifTags import Base
+    >>> Base.ImageDescription.value
+    270
+    >>> Base(270).name
+    'ImageDescription'
+
+.. py:data:: GPS
+
+    >>> from PIL.ExifTags import GPS
+    >>> GPS.GPSDestLatitude.value
+    20
+    >>> GPS(20).name
+    'GPSDestLatitude'