Fabric vs Invoke

Notice that both projects are maintained and managed by the same person. Bitprophet is working on a Fabric 2.x line that will utilize Invoke to clear out a lot of the cruft around running shell commands that exists right now in Fabric 1.x. So it's not really meant to replace fabric, but to be something from which later versions will build off.

Some helpful details are here: http://www.fabfile.org/roadmap.html#invoke-fabric-2-x-and-patchwork

As Fabric 2 is developed, Invoke will approach a 1.0 release, and will continue to grow & change to suit Fabric’s needs while remaining a high quality standalone task runner.