# Can I browse Cython Docs within the notebook()?

http://pypi.python.org/pypi/bintrees/...

So I notice this webpage that says that Cython has Red-Black Trees (or someone has used Cython to implement them), and I think "Great! How can I get started using them?!"

Of course, I not knowing whether this package is included in sage (or if it is how to get to it); I type "sage: cython?", and I am now unsure where to look. Are the Cython docs included in Sage? What about other packages? Is it standardized within the notebook somehow? Of the included packages, do they have optionally included sub-packages? Tips? Thanks! When I say "included", I mean "bundled" in the distribution.

If they aren't available from Cython, I would be interested to learn more about similar data structures' availability, wherever they may live within Sage. Thx