On Tue, Jul 28, 2015 at 07:55:54PM -0400, Doug Hellmann wrote: > I replied on both patches, but I'll repeat it here for a broader > audience: > > Please set up an "extras" entry for each backend instead of just > removing the dependencies. That will signal to users that you know > what dependencies there are for a backend, but that they are optional, > and still allow someone to do the equivalent of "pip install > glance[vmware]" or "pip install glance[swift]" to get those > dependencies. Nova and oslo.versionedobjects have examples in their > setup.cfg if you need a template. > > I didn't mention in the reviews, but this will also make integration > tests in our gate easier, since you can put ".[vmware]" or ".[swift]" in > the tox.ini to pull in those dependencies.
This sounds like the best option. What happens if you want to enable multiple backends? Can you do something like "pip install glance[swift, vmware]", or would you need to run a separate pip command to install each? Cheers, Louis
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