Re: 3.0rc3: 'os.extsep' gone ... ?
Terry Reedy wrote: The doc for os.path begins This module implements some useful functions on pathnames. os.path contains functions that work differently on different systems. It is in fact a variable that is initialized to point to posixpath, ntpath etc as appropriate for the current system http://docs.python.org/library/undoc.html#platform-specific-modules. -- http://mail.python.org/mailman/listinfo/python-list
Re: 3.0rc3: 'os.extsep' gone ... ?
On 24 Nov, 08:43, Martin v. Löwis [EMAIL PROTECTED] wrote: That doesn't really explain it. It always was os.path.extsep, but it *also* was os.extsep. I've always known it as the former; a perusal of the Python repository would probably indicate when it became exposed in the os module itself. Support for extension separators (extsep and splitext) has always been somewhat lacklustre in the os(.path) module, perhaps due to complicated filename syntax from operating systems like VMS, but it'd be good to improve this support in future, I think. Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: 3.0rc3: 'os.extsep' gone ... ?
Christian Heimes wrote: bMotu wrote: IDLE 2.6 import os os.extsep '.' running XP this result is fine ... ! IDLE 3.0rc3 import os os.extsep Traceback (most recent call last): File pyshell#1, line 1, in module os.extsep AttributeError: 'module' object has no attribute 'extsep' why is this attribute gone in 3.0rc3 ? where is this documented ? It's now os.path.extsep. In 3.0, os.curdir, os.pardir, os.sep, os.altsep, os.pathsep, os.defpath, and os.devnull are also in os.path. (Hurray for set intersection.) os.extset was in os.path and is documented to still be so, but was removed. os.linesep, inconsistently, never was in os.path. I think either all or none should be duplicated. The doc for os.path begins This module implements some useful functions on pathnames. The duplication of the sysinfo constants is not mentioned! So if they are only in one place, it should be os, not os.path. The name 'stat' is in both, but is bound to different objects (built-in function versus module). Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: 3.0rc3: 'os.extsep' gone ... ?
That doesn't really explain it. It always was os.path.extsep, but it *also* was os.extsep. I've always known it as the former Same here, but see below. a perusal of the Python repository would probably indicate when it became exposed in the os module itself. That's indeed easier to answer than finding out when it was removed for 3k, and by whom. It was provided in its current form with r31426 | montanaro | 2003-02-14 20:35:31 +0100 (Fr, 14. Feb 2003) | 3 lines Migrate definitions of several platform-dependent path-related variables into the relevant path modules. See patch #686397. So they were migrated *into* the specific modules in 2003. Before, they were all conditionally defined based on the platform, in os.py itself. So I must be misremembering - in 2.2 and earlier, they were only in the os module. So it was *not* always os.path.extsep. Perhaps this gives the rationale for the change - migration into the platform modules is now complete. Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: 3.0rc3: 'os.extsep' gone ... ?
Martin v. Löwis wrote: Perhaps this gives the rationale for the change - migration into the platform modules is now complete. Except that, as I posted earlier, extsep is the *only* os system info constant that has been removed from os. -- http://mail.python.org/mailman/listinfo/python-list
Re: 3.0rc3: 'os.extsep' gone ... ?
Except that, as I posted earlier, extsep is the *only* os system info constant that has been removed from os. Ah, this gives another clue: r57097 | skip.montanaro | 2007-08-16 16:35:24 +0200 (Do, 16. Aug 2007) | 1 line Remove RISCOS support Still not sure though why extsep was removed in this change... Not that I regret it's gone - it was a useless constant, anyway, as the extension separator is '.' on all interesting systems. Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: 3.0rc3: 'os.extsep' gone ... ?
Martin Martin r57097 | skip.montanaro | 2007-08-16 16:35:24 +0200 (Do, 16. Aug 2007) | Martin 1 line Martin Remove RISCOS support Martin Yeah, that was me. Martin Not that I regret it's gone - it was a useless constant, anyway, Martin as the extension separator is '.' on all interesting systems. Except if you diff r57096 and r57097 I suspect you'll find that it was different in RISCOS. Perhaps it was only ever added to Python to support that platform. Skip -- http://mail.python.org/mailman/listinfo/python-list
Re: 3.0rc3: 'os.extsep' gone ... ?
Martin Not that I regret it's gone - it was a useless constant, anyway, Martin as the extension separator is '.' on all interesting systems. Except if you diff r57096 and r57097 I suspect you'll find that it was different in RISCOS. I did, and interestingly enough, you won't find that. It was different indeed - but you need to look r57116 to find out what happened to riscospath.py (as only then, you removed the specific path module). In any case - if the intention was that extsep is now not supported anymore, it should have been removed from the other *path modules as well (along with removing it from the documentation). Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: 3.0rc3: 'os.extsep' gone ... ?
[EMAIL PROTECTED] wrote: Martin In any case - if the intention was that extsep is now not Martin supported anymore, it should have been removed from the other Martin *path modules as well (along with removing it from the Martin documentation). No, that wasn't my intent. I was speculating that os.extsep turned up in Python when RISCOS support was added. At the time I removed support I wasn't thinking in terms of getting rid of that attribute. I don't quite understand. Yes, the variable was added when RISCOS support was introduced. So when RISCOS support is removed, it seems natural to remove the variable also. You chose not to - so why did you then remove it from the os module? Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: 3.0rc3: 'os.extsep' gone ... ?
Martin v. Löwis wrote: That doesn't really explain it. It always was os.path.extsep, but it *also* was os.extsep. I don't know the rationale for this change myself, either. Probably because it's considered platform-specific. -- http://mail.python.org/mailman/listinfo/python-list
3.0rc3: 'os.extsep' gone ... ?
IDLE 2.6 import os os.extsep '.' running XP this result is fine ... ! IDLE 3.0rc3 import os os.extsep Traceback (most recent call last): File pyshell#1, line 1, in module os.extsep AttributeError: 'module' object has no attribute 'extsep' why is this attribute gone in 3.0rc3 ? where is this documented ? ciao, motu -- http://mail.python.org/mailman/listinfo/python-list
Re: 3.0rc3: 'os.extsep' gone ... ?
On Nov 24, 9:59 am, bMotu [EMAIL PROTECTED] wrote: AttributeError: 'module' object has no attribute 'extsep' why is this attribute gone in 3.0rc3 ? where is this documented ? According to the 3.0 docs, it should still be there. But I'm finding the same with rc2. Looks like a bug. It's available as os.path.extsep though. -- http://mail.python.org/mailman/listinfo/python-list
Re: 3.0rc3: 'os.extsep' gone ... ?
alex23 wrote: On Nov 24, 9:59 am, bMotu [EMAIL PROTECTED] wrote: AttributeError: 'module' object has no attribute 'extsep' why is this attribute gone in 3.0rc3 ? where is this documented ? According to the 3.0 docs, it should still be there. But I'm finding the same with rc2. Looks like a bug. It's available as os.path.extsep though. Reported in http://bugs.python.org/issue4401 -- http://mail.python.org/mailman/listinfo/python-list
Re: 3.0rc3: 'os.extsep' gone ... ?
bMotu wrote: IDLE 2.6 import os os.extsep '.' running XP this result is fine ... ! IDLE 3.0rc3 import os os.extsep Traceback (most recent call last): File pyshell#1, line 1, in module os.extsep AttributeError: 'module' object has no attribute 'extsep' why is this attribute gone in 3.0rc3 ? where is this documented ? It's now os.path.extsep. Christian -- http://mail.python.org/mailman/listinfo/python-list
Re: 3.0rc3: 'os.extsep' gone ... ?
Christian Heimes wrote: bMotu wrote: IDLE 2.6 import os os.extsep '.' running XP this result is fine ... ! IDLE 3.0rc3 import os os.extsep Traceback (most recent call last): File pyshell#1, line 1, in module os.extsep AttributeError: 'module' object has no attribute 'extsep' why is this attribute gone in 3.0rc3 ? where is this documented ? It's now os.path.extsep. That doesn't really explain it. It always was os.path.extsep, but it *also* was os.extsep. I don't know the rationale for this change myself, either. I doubt it is documented anywhere, nor do I think it should; there won't be ever a complete list of changes between 2.x and 3.x. Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
