Accessing python from a network share in windows 7

[aj]

I access python from a network share. This works fine on XP but on
windows 7 it throws the following error:

Python 2.6.1 (r261:67517, Dec  4 2008, 16:51:00) [MSC v.1500 32 bit
(Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import random
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "t:\win32\python-2.6.1\lib\random.py", line 871, in <module>
    _inst = Random()
  File "t:\win32\python-2.6.1\lib\random.py", line 96, in __init__
    self.seed(x)
  File "t:\win32\python-2.6.1\lib\random.py", line 110, in seed
    a = long(_hexlify(_urandom(16)), 16)
WindowsError: [Error 127] The specified procedure could not be found

Is there some security policy that I need to enable/disable to use
python from a network on windows 7?