I'm using python through Anaconda, and would like to use a new feature (http://scikit-learn.org/dev/modules/neural_networks_supervised.html) in scikit-learn that's currently only available in the development version 0.18.dev0.
However, doing the classical
You can only use
conda to install a package if someone has built and made available binaries for the package. Some packages publish nightly builds that would allow this, but scikit-learn is not one of them.
To install the bleeding-edge version in one command, you could use pip; e.g.:
$ conda install pip $ pip install git+git://github.com/scikit-learn/scikit-learn.git
but keep in mind that this requires compiling all the C extensions within the library, and so it will fail if your system is not set up for that.