commit b852d8c1f0b12e84549d83cd9b1ec0992b9d9703
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Tue Feb 20 22:37:18 2018 -0800
committer Serhiy Storchaka <storchaka@gmail.com> Wed Feb 21 08:37:18 2018 +0200
tree d9975cf774e4969c0a0bc4300f7091811cb7a3b9
parent 6c7edba1665ea676328c6b50f92e8423c8f0d164

[2.7] bpo-31848: Fix broken error handling in Aifc_read.initfp() when the SSND chunk is not found (GH-5240) (GH-5781)

Initialize self._ssnd_chunk so that aifc.Error is raised as intended,
not AttributeError.
(cherry picked from commit 80d20b918bd8a882043c493a7f958333ecb41727)


Co-authored-by: Zackery Spytz <zspytz@gmail.com>

Lib/aifc.py

diff --git a/Lib/aifc.py b/Lib/aifc.py
index e678327..981f801 100644
--- a/Lib/aifc.py
+++ b/Lib/aifc.py
@@ -308,6 +308,7 @@
         else:
             raise Error, 'not an AIFF or AIFF-C file'
         self._comm_chunk_read = 0
+        self._ssnd_chunk = None
         while 1:
             self._ssnd_seek_needed = 1
             try: