The only thing I'd suggest missing out for TCL is the implied requirements in the "work" and "masters degree" comments - that at least some of this code is probably going to need to be shared and used/understood with others.

For that reason alone I'd say Python is likely to be a significantly better choice. (If I'm interpreting the implications correctly)

I've got experience with trying to find people who can work in Groovy on Grails projects - it's not easy. That's not a great reason to stick to "mainstream languages", but I won't be making the Groovy mistake again any time soon... And while TCL is definitely _capable_ of replacing Groovy, it is the wrong choice for me that same way that Groovy was...