Merge pull request #2 from radarhere/open_formats_case

Moved case transformation before initialization check
python-pillow · Feb 5, 2021 · 957cc1b · 957cc1b
2 parents 4a9a999 + 587e073
commit 957cc1b
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/PIL/Image.py b/src/PIL/Image.py
@@ -2922,10 +2922,11 @@ def open(fp, mode="r", formats=None):
 
     def _open_core(fp, filename, prefix, formats):
         for i in formats:
+            i = i.upper()
             if i not in OPEN:
                 init()
             try:
-                factory, accept = OPEN[i.upper()]
+                factory, accept = OPEN[i]
                 result = not accept or accept(prefix)
                 if type(result) in [str, bytes]:
                     accept_warnings.append(result)