Hello Visconti,
I agree with Pala.
I wrote some scripts with TCL for XMC, but Python is more powerful and you have the ability to use (import) prebuild packages.
You will find more support here for Python as for TCL.
According some surveys the usage of TCL is decreasing, too.
If you start from scratch Python is a better choice than TCL.
Best regards
Stephan
Regards
Stephan