New os.path.exists() behavior - bug or feature?

[klappnase]

Hi all,
yesterday I installed Python-2.5 and python-2.4.4 on my windows2k box.
When trying to use os.path.exists() to detect which drives are present
on the system I noticed that
these behave differently:

Python 2.4.4 (#71, Oct 18 2006, 08:34:43) [MSC v.1310 32 bit (Intel)]
on win32
Type "copyright", "credits" or "license()" for more information.

>>> import os
>>> for char in 'ABCDEFGHIJKLMNOPQRSTUVWXYZ':
	if os.path.exists('%s:\\' % char):
		print '%s:\\' % char


A:\
C:\
D:\
E:\

>>>

###########################################

Python 2.5 (r25:51908, Sep 19 2006, 09:52:17) [MSC v.1310 32 bit
(Intel)] on win32
Type "copyright", "credits" or "license()" for more information.

>>> import os
>>> for char in 'ABCDEFGHIJKLMNOPQRSTUVWXYZ':
	if os.path.exists('%s:\\' % char):
		print '%s:\\' % char


C:\
>>>

When I insert a floppy into A: os.path.exists('A:\\') will return True
on Python-2.5, too.
Does anyone know, is this inconsistent behavior a bug or a new feature?

I also noticed that the Tix binaries are no longer present in 2.5, does
anyone know if it is
planned to remove them pemanently?

Thanks in advance

Michael