Я получаю эту ошибку при создании объекта Reddit. Вот's код:

import praw, requests, ctypes
r = praw.Reddit(user_agent="Wallpaper downloader")

Вот'ошибка

Traceback (последний вызов был последним):

File "C:/Python27/background.py", line 3, in 
    r = praw.Reddit(user_agent="Wallpaper downloader")
  File "C:\Python27\lib\site-packages\praw\__init__.py", line 1028, in __init__
    super(AuthenticatedReddit, self).__init__(*args, **kwargs)
  File "C:\Python27\lib\site-packages\praw\__init__.py", line 502, in __init__
    super(OAuth2Reddit, self).__init__(*args, **kwargs)
  File "C:\Python27\lib\site-packages\praw\__init__.py", line 615, in __init__
    super(UnauthenticatedReddit, self).__init__(*args, **kwargs)
  File "C:\Python27\lib\site-packages\praw\__init__.py", line 280, in __init__
    self.handler = handler or DefaultHandler()
  File "C:\Python27\lib\site-packages\praw\handlers.py", line 70, in __init__
    self.http = Session()  # Each instance should have its own session
  File "C:\Python27\lib\site-packages\requests\sessions.py", line 176, in __init__
    self.headers = default_headers()
  File "C:\Python27\lib\site-packages\requests\utils.py", line 461, in default_headers
    'User-Agent': default_user_agent(),
  File "C:\Python27\lib\site-packages\requests\utils.py", line 430, in default_user_agent
    _implementation = platform.python_implementation()
  File "C:\Python27\lib\platform.py", line 1458, in python_implementation
    return _sys_version()[0]
  File "C:\Python27\lib\platform.py", line 1423, in _sys_version
    repr(sys_version))
ValueError: failed to parse CPython sys.version: '2.7.3 |EPD_free 7.3-2 (32-bit)| (default, Apr 12 2012, 14:30:37) [MSC v.1500 32 bit (Intel)]'

Я установил praw с помощью pip, и яЯ использую Windows. Есть идеи, почему я получил эту ошибку?