This command runs a Tcl script in the SpecTcl interpreter. If you find that the spectcl package is missing some feature, as a last resort, you can use this command to gain access to that feature in SpecTcl.
You can also use this command to gain access to the
Tk user interface SpecTcl is running and, with a bit of
thought arrange for python scripts to execute in response
to user interface actions. (Hint
-command [list python exec [list python-script])
might get you started there.