When I do a google search the version numbers are mismatched with the linked page (or redirected).
For example search for "python counter" I get the following results. (see attachment)
It seems like the website is redirecting incorrectly.

  1. collections - Python 3.3.3 documentation
    1. links to http://docs.python.org/library/collections.html
    2. redirects to http://docs.python.org/2/library/collections.html
    3. Which is python 2.7.6
  2. itertools - Python 3.3.3 documentation
    1. links to http://docs.python.org/library/itertools.html
    2. redirects to http://docs.python.org/2/library/itertools.html
    3. Which is again 2.7.6
  3. 8.3. collections — Container datatypes - Python 3.3.3 documentation
    1. This one seems correct, 3.40b2
    2. links to http://docs.python.org/dev/library/collections
The link to addresses are not really true, they look more like:

Vincent Davis