Revert "Safely decode if the input or the buffer is None."

Giovanni Siragusa · Giovanni Siragusa · commit d03fda7542ed · 2024-07-13T17:11:43.000+02:00
This reverts commit 74e239d.
diff --git a/Lib/codecs.py b/Lib/codecs.py
@@ -321,13 +321,7 @@ def _buffer_decode(self, input, errors, final):
 
     def decode(self, input, final=False):
         # decode input (taking the buffer into account)
-        data = b''
-        if input is not None:
-            data += input
-
-        if self.buffer is not None:
-            data += self.buffer
-
+        data = self.buffer + input
         (result, consumed) = self._buffer_decode(data, self.errors, final)
         # keep undecoded input until the next call
         self.buffer = data[consumed:]
