From dd030343b8adf61e0b8ace836952d815c70ff46b Mon Sep 17 00:00:00 2001
From: Mattijs Ugen <144798+akaIDIOT@users.noreply.github.com>
Date: Fri, 18 Feb 2022 14:11:05 +0100
Subject: [PATCH] Use importlib.metadata.entry_points to load PIL.Image.decoder
 entries on init()

---
 src/PIL/Image.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/PIL/Image.py b/src/PIL/Image.py
index 8d36e8871..4dccaebab 100644
--- a/src/PIL/Image.py
+++ b/src/PIL/Image.py
@@ -44,6 +44,12 @@ try:
 except ImportError:
     ElementTree = None
 
+try:
+    from importlib.metadata import entry_points
+except ImportError:
+    # NB: potentially try to load entry_points from backported importlib_metadata?
+    entry_points = None
+
 # VERSION was removed in Pillow 6.0.0.
 # PILLOW_VERSION was removed in Pillow 9.0.0.
 # Use __version__ instead.
@@ -374,6 +380,12 @@ def init():
         except ImportError as e:
             logger.debug("Image: failed to import %s: %s", plugin, e)
 
+    if entry_points:
+        for decoder in entry_points(group='PIL.Image.decoder'):
+            # or, alternatively, register a decoder directly from here:
+            # DECODERS[decoder.name] = decoder.load()
+            decoder.load()
+
     if OPEN or SAVE:
         _initialized = 2
         return 1