ImportError: No module named 'requests.packages.urllib3.util'

I'm using Python 3.4. I get this error from `import requests`:

```
Traceback (most recent call last):
  File "devwiki.py", line 4, in <module>
    import requests
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests-2.3.0-py3.4.egg/requests/__init__.py", line 58, in <module>
    from . import utils
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests-2.3.0-py3.4.egg/requests/utils.py", line 25, in <module>
    from .compat import parse_http_list as _parse_list_header
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests-2.3.0-py3.4.egg/requests/compat.py", line 7, in <module>
    from .packages import chardet
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests-2.3.0-py3.4.egg/requests/packages/__init__.py", line 3, in <module>
    from . import urllib3
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests-2.3.0-py3.4.egg/requests/packages/urllib3/__init__.py", line 16, in <module>
    from .connectionpool import (
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests-2.3.0-py3.4.egg/requests/packages/urllib3/connectionpool.py", line 36, in <module>
    from .connection import (
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/requests-2.3.0-py3.4.egg/requests/packages/urllib3/connection.py", line 43, in <module>
    from .util import (
ImportError: No module named 'requests.packages.urllib3.util'
```