20040619 [CMcC]: A late night on [Tcl'ers Chat], some wild ideas, here's one:

'''What if Python had a new additional parser which made it look like Tcl?'''

I envisage it as follows:

   1. a line of input is broken up into elements, as per the [Endekalog].

   2. the 0th element of the resulting list is resolved as an object, or the name of an object

   3. the resolved object is inspected for a .__tcl__ method which is then called with the entire line as arguments.

   4. if there is no .__tcl__ method, the 1st element is treated as a method on the 0th object, and invoked on the object with the usual [Python] calling convention.

   5. the default .__tcl__ method calls the object with args 1..n with the usual [Tcl] calling convention.

There are assumed to be a bunch of objects inheriting from a TclCommand class, e.g. if foreach while set (etc etc)

Add [uplevel] to Python and voila - you have something which looks (very nearly) like Tcl, but is running over Python.

I really think this is feasible.  It could give you Tcl script level compatibility in Python, I think.

Let the games begin :)
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''Interesting idea.  Note that there are also some deeper differences to mull over, such as copy-on-write (side-effect-less changes to lists), and the event model. -[jcw]''