mirror of https://github.com/python/cpython
Issue #18084: Use sys.byteorder in wave.py.
Original patch by Hideaki Takahashi.
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11
Lib/wave.py
11
Lib/wave.py
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@ -82,13 +82,8 @@ WAVE_FORMAT_PCM = 0x0001
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_array_fmts = None, 'b', 'h', None, 'l'
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# Determine endian-ness
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import struct
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if struct.pack("h", 1) == b"\000\001":
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big_endian = 1
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else:
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big_endian = 0
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import sys
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from chunk import Chunk
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from collections import namedtuple
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@ -235,7 +230,7 @@ class Wave_read:
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self._data_seek_needed = 0
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if nframes == 0:
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return b''
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if self._sampwidth > 1 and big_endian:
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if self._sampwidth > 1 and sys.byteorder == 'big':
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# unfortunately the fromfile() method does not take
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# something that only looks like a file object, so
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# we have to reach into the innards of the chunk object
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@ -422,7 +417,7 @@ class Wave_write:
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nframes = len(data) // (self._sampwidth * self._nchannels)
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if self._convert:
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data = self._convert(data)
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if self._sampwidth > 1 and big_endian:
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if self._sampwidth > 1 and sys.byteorder == 'big':
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import array
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data = array.array(_array_fmts[self._sampwidth], data)
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data.byteswap()
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