yes, this is how it would look, beside the fact that I used "," commas as a
separator in the patch since the option can also be passed from the command
line. (but both could work)

In the meantime, while this patch is being reviewed, I do believe pip already
has a multiple index implementation. So if you are not using zc.buildout you
might want to take a look at pip.

This would be useful. Currently similar index list is located in turbogears
project, and while some new packages are already on tg2 index, some are not. You
get an error if the package can't be found, so having a second index I could
point to would allow for a "fail over":
From reading setuptools it seems as this would be a recommended setup.cfg
configuration.
[easy_install] 
index_url = http://turbogears.org/2.0/downloads/current/index/
            http://pypi.python.org/simple/


Let me know which version this gets implemented in assuming this patch allows
for a configuration I just specified above.
Thanks,
Lucas

Here's a patch that implements a first draft of the feature

PyPI mirrors and alternative packages servers are starting to appear. To be able
to use them efficiently, setuptools should be able to handle a list of index url
instead of a single one.

That would involve playing with several instance of PackageIndex but would allow
retrieving packages from several sources, whether they are mirrors or
alternative package servers.