From d3b750516f442911b8a35930b76a6953e4713556 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Thu, 17 Oct 2013 23:04:04 +0300
Subject: Issue #19276: Fixed the wave module on 64-bit big-endian platforms.

---
 Lib/wave.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'Lib/wave.py')

diff --git a/Lib/wave.py b/Lib/wave.py
index 2c386a5dff..a1daead8ab 100644
--- a/Lib/wave.py
+++ b/Lib/wave.py
@@ -80,7 +80,7 @@ class Error(Exception):
 
 WAVE_FORMAT_PCM = 0x0001
 
-_array_fmts = None, 'b', 'h', None, 'l'
+_array_fmts = None, 'b', 'h', None, 'i'
 
 # Determine endian-ness
 import struct
@@ -238,6 +238,7 @@ class Wave_read:
             import array
             chunk = self._data_chunk
             data = array.array(_array_fmts[self._sampwidth])
+            assert data.itemsize == self._sampwidth
             nitems = nframes * self._nchannels
             if nitems * self._sampwidth > chunk.chunksize - chunk.size_read:
                 nitems = (chunk.chunksize - chunk.size_read) // self._sampwidth
@@ -421,6 +422,7 @@ class Wave_write:
         if self._sampwidth > 1 and big_endian:
             import array
             data = array.array(_array_fmts[self._sampwidth], data)
+            assert data.itemsize == self._sampwidth
             data.byteswap()
             data.tofile(self._file)
             self._datawritten = self._datawritten + len(data) * self._sampwidth
-- 
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