bzr 0.0.5 windows python 2.4.1 "global name 'self' not defined"

[mark brand]

hi:

just download bzr 0.0.5, am running this with windows xp & python 2.4.1

i was doing the bzr tutorial: when i did "bzr status" i get this error 
(below, between ---), all i had done upto this point is do a bzr init 
which appeared to work ok.

cheers
mark
----------------------------------------------------
[D:\bin\dev\bzr\t]python ..\bzr status

bzr: global name 'self' is not defined
   at d:\bin\dev\bzr\bzrlib\lock.py:218 in _msvc_lock()
   see ~/.bzr.log for debug information
D:\bin\dev\bzr\bzrlib\lock.py:64: UserWarning: lock on <open file 
'D:\bin\dev\bzr\t\.bzr\branch-lock', mode 'rb' at 0x00
BB4A88> not released
   warn("lock on %r not released" % self.f)
Exception bzrlib.errors.LockError: <bzrlib.errors.LockError instance at 
0x00C727B0> in <bound method _msvc_ReadLock.__de
l__ of <bzrlib.lock._msvc_ReadLock object at 0x00BD01F0>> ignored
---------------------------------------------------------------------