Issue #18084: Use sys.byteorder in wave.py.
Original patch by Hideaki Takahashi.
diff --git a/Lib/wave.py b/Lib/wave.py
index e3bf2af..ea410c1 100644
--- a/Lib/wave.py
+++ b/Lib/wave.py
@@ -82,13 +82,8 @@
_array_fmts = None, 'b', 'h', None, 'l'
-# Determine endian-ness
import struct
-if struct.pack("h", 1) == b"\000\001":
- big_endian = 1
-else:
- big_endian = 0
-
+import sys
from chunk import Chunk
from collections import namedtuple
@@ -235,7 +230,7 @@
self._data_seek_needed = 0
if nframes == 0:
return b''
- if self._sampwidth > 1 and big_endian:
+ if self._sampwidth > 1 and sys.byteorder == 'big':
# unfortunately the fromfile() method does not take
# something that only looks like a file object, so
# we have to reach into the innards of the chunk object
@@ -422,7 +417,7 @@
nframes = len(data) // (self._sampwidth * self._nchannels)
if self._convert:
data = self._convert(data)
- if self._sampwidth > 1 and big_endian:
+ if self._sampwidth > 1 and sys.byteorder == 'big':
import array
data = array.array(_array_fmts[self._sampwidth], data)
data.byteswap()