If I'm understanding correctly, you're saying we should add `Tcl` and `Tk` as dependencies in the Python easyconfig, thus triggering the build of the `TkInter` (http://wiki.python.org/moin/TkInter) functionality as a part of the Python installation. Am I getting this right?

I'd do this in a separate PR/issue (can you open one?), we need to check whether this could/will cause problems (e.g. with building Tcl/Tk with any of the toolchains).