Yes. web2py has something that works like rails routes and a syntax very similar to Django urls. Plus we allow URL rewrite filtering based on the client IP address.
example: create a file called routes.py in web2py/ and write in it something like:
routes_in=(
('^140\.192\.34\.157:.*','/examples/default/index'), # this guy can only access the index page
('^.*:.*\.php','/examples/default/index'), # maps all .php pages into index page (no php here!)
('^.*:/docs/(?P<key>)','/examples/\g<key>'), # maps /docs into /examples for everybody
)
routes_out=(
('^/examples/default/index$','/examples'), # makes shorter URL for /examples/default/index
)
Mind that editing routes can break some links in your app. This page will be expended soon.