From 67c1258cfcb9dc23b000c0fe572da59f0cf76217 Mon Sep 17 00:00:00 2001
From: Luis G <luis.gg1990@gmail.com>
Date: Sun, 19 Jun 2016 21:39:31 -0300
Subject: [PATCH] Expose registered file extensions

This adds a new method in Image (registered_extensions) that exposes the
internal EXTENSION dictionary to consumers of the library
---
 PIL/Image.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/PIL/Image.py b/PIL/Image.py
index f49834e5b..e368ef187 100644
--- a/PIL/Image.py
+++ b/PIL/Image.py
@@ -2512,6 +2512,16 @@ def register_extension(id, extension):
     EXTENSION[extension.lower()] = id.upper()
 
 
+def registered_extensions():
+    """
+    Returns a dictionary containing all file extensions belonging
+    to registered plugins
+    """
+    if not bool(EXTENSION):
+        init()
+    return EXTENSION
+
+
 # --------------------------------------------------------------------
 # Simple display support.  User code may override this.