import praw
r = praw.Reddit(user_agent='my_cool_application')
submissions = r.get_subreddit('opensource').get_hot(limit=5)
[str(x) for x in submissions]

script run to

Traceback (most recent call last):
  File "[...]\GeographyFactBot_test.py", line 2, in <module>
    r = praw.Reddit(user_agent='my_cool_application')
  File "C:\Python33\lib\site-packages\praw\__init__.py", line 994, in __init__
    super(AuthenticatedReddit, self).__init__(*args, **kwargs)
  File "C:\Python33\lib\site-packages\praw\__init__.py", line 496, in __init__
    super(OAuth2Reddit, self).__init__(*args, **kwargs)
  File "C:\Python33\lib\site-packages\praw\__init__.py", line 612, in __init__
    super(UnauthenticatedReddit, self).__init__(*args, **kwargs)
  File "C:\Python33\lib\site-packages\praw\__init__.py", line 287, in __init__
    update_check(__name__, __version__)
  File "C:\Python33\lib\site-packages\update_checker.py", line 146, in update_check
    result = checker.check(package_name, package_version, **extra_data)
  File "C:\Python33\lib\site-packages\update_checker.py", line 54, in wrapped
    retval = function(obj, package_name, package_version, **extra_data)
  File "C:\Python33\lib\site-packages\update_checker.py", line 105, in check
    headers=headers)
  File "C:\Python33\lib\site-packages\requests\api.py", line 99, in put
    return request('put', url, data=data, **kwargs)
  File "C:\Python33\lib\site-packages\requests\api.py", line 44, in request
    return session.request(method=method, url=url, **kwargs)
  File "C:\Python33\lib\site-packages\requests\sessions.py", line 335, in request
    resp = self.send(prep, **send_kwargs)
  File "C:\Python33\lib\site-packages\requests\sessions.py", line 438, in send
    r = adapter.send(request, **kwargs)
  File "C:\Python33\lib\site-packages\requests\adapters.py", line 292, in send
    timeout=timeout
  File "C:\Python33\lib\site-packages\requests\packages\urllib3\connectionpool.py", line 423, in urlopen
    conn = self._get_conn(timeout=pool_timeout)
  File "C:\Python33\lib\site-packages\requests\packages\urllib3\connectionpool.py", line 238, in _get_conn
    return conn or self._new_conn()
  File "C:\Python33\lib\site-packages\requests\packages\urllib3\connectionpool.py", line 205, in _new_conn
    strict=self.strict)
  File "C:\Python33\lib\http\client.py", line 737, in __init__
    DeprecationWarning, 2)
  File "C:\Python33\lib\idlelib\PyShell.py", line 60, in idle_showwarning
    file.write(warnings.formatwarning(message, category, filename,
AttributeError: 'NoneType' object has no attribute 'write'