New submission from geremy condra <debat...@gmail.com>:
It looks like subprocess.getstatusoutput on 3.2a1 tries to coerce to UTF-8,
which fails when dealing with bytes. This demonstrates the behavior nearly all
the time for me on Ubuntu 10.04:
>>> import subprocess
>>> subprocess.getstatusoutput('dd if=/dev/random bs=1K count=1')
Here's the tracebacks from a few runs:
>>> subprocess.getstatusoutput('dd if=/dev/random bs=1K count=1')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python3.2/subprocess.py", line 585, in getstatusoutput
text = pipe.read()
File "/usr/local/lib/python3.2/codecs.py", line 300, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xcb in position 3: invalid
continuation byte
>>> subprocess.getstatusoutput('dd if=/dev/random bs=1K count=1')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python3.2/subprocess.py", line 585, in getstatusoutput
text = pipe.read()
File "/usr/local/lib/python3.2/codecs.py", line 300, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xe4 in position 2: invalid
continuation byte
>>> subprocess.getstatusoutput('dd if=/dev/random bs=1K count=1')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python3.2/subprocess.py", line 585, in getstatusoutput
text = pipe.read()
File "/usr/local/lib/python3.2/codecs.py", line 300, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xac in position 0: invalid
start byte
>>> subprocess.getstatusoutput('dd if=/dev/random bs=1K count=1')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python3.2/subprocess.py", line 585, in getstatusoutput
text = pipe.read()
File "/usr/local/lib/python3.2/codecs.py", line 300, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xf1 in position 0: invalid
continuation byte
>>>
And here's the version info:
Python 3.2a1 (r32a1:83318, Aug 13 2010, 22:32:03)
[GCC 4.4.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
----------
components: Library (Lib)
messages: 117156
nosy: debatem1
priority: normal
severity: normal
status: open
title: subprocess.getstatusoutput and bytes
type: behavior
versions: Python 3.2
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue9922>
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