[Python-Dev] PEP 383: Non-decodable Bytes in System Character Interfaces (original) (raw)

Ronald Oussoren ronaldoussoren at mac.com
Fri May 1 07:41:16 CEST 2009

On 30 Apr, 2009, at 21:33, Piet van Oostrum wrote:

Ronald Oussoren <ronaldoussoren at mac.com> (RO) wrote: RO> For what it's worth, the OSX API's seem to behave as follows: RO> * If you create a file with an non-UTF8 name on a HFS+ filesystem the RO> system automaticly encodes the name. RO> That is, open(chr(255), 'w') will silently create a file named '%FF' RO> instead of the name you'd expect on a unix system. Not for me (I am using Python 2.6.2). f = open(chr(255), 'w') Traceback (most recent call last): File "", line 1, in IOError: [Errno 22] invalid mode ('w') or filename: '\xff'

That's odd. Which version of OSX do you use?

ronald at Rivendell-2[0]$ sw_vers ProductName: Mac OS X ProductVersion: 10.5.6 BuildVersion: 9G55

[~/testdir] ronald at Rivendell-2[0]$ /usr/bin/python Python 2.5.1 (r251:54863, Jan 13 2009, 10:26:13) [GCC 4.0.1 (Apple Inc. build 5465)] on darwin Type "help", "copyright", "credits" or "license" for more information.

import os os.listdir('.') [] open(chr(255), 'w').write('x') os.listdir('.') ['%FF']

And likewise with python 2.6.1+ (after cleaning the directory):

[~/testdir] ronald at Rivendell-2[0]$ python2.6 Python 2.6.1+ (release26-maint:70603, Mar 26 2009, 08:38:03) [GCC 4.0.1 (Apple Inc. build 5493)] on darwin Type "help", "copyright", "credits" or "license" for more information.

import os os.listdir('.') [] open(chr(255), 'w').write('x') os.listdir('.') ['%FF']

I once got a tar file from a Linux system which contained a file with a non-ASCII, ISO-8859-1 encoded filename. The tar file refused to be unpacked on a HFS+ filesystem. -- Piet van Oostrum <piet at cs.uu.nl> URL: http://pietvanoostrum.com [PGP 8DAE142BE17999C4] Private email: piet at vanoostrum.org

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