Problem with os.chdir()

[venutaurus539 at gmail.com]

Hello all,
           I am writing a python script which has to access deep paths
then supported normally by the Windows OS (>255). So I am appending "\
\?\" to do so. But when I use the path in the above fashion with
os.chdir() it is unable to recognize my folder and throwing an error:

Traceback (most recent call last):
  File "C:\JPDump\test.py", line 31, in <module>
    renameStubs(file)
  File "C:\JPDump\test.py", line 15, in renameStubs
    os.chdir (path)
WindowsError: [Error 123] The filename, directory name, or volume
label syntax is incorrect: '\\?\\C:\\TestDataSet\
\Many_Files_10000_1KB_FIles\\001_0009_1000 FILES\\'

The value of my path variable is
\?\C:\TestDataSet\Many_Files_10000_1KB_FIles\001_0009_1000 FILES\

Can someone please help me in this..

Thank you,
Venu M