tclpython

a Python package for Tcl

This package allows the execution of Python code from a Tcl interpreter, as in:

package require tclpython
set interpreter [python::interp new]
$interpreter eval {print("Hello World")}
python::interp delete $interpreter

It works by creating an embedded Python interpreter and sending it strings to evaluate. Modules can be loaded in the Python interpreter as if it were the real python program.

As expected, eval returns whatever the Python interpreter would print in interactive mode and reports an error at the Tcl level when the Python interpreter itself fails in executing the code string.

As in Python interactive mode, the result of the last valid expression is assigned to the variable '_'.
For example:

$interpreter eval 3/2.0
puts [$interpreter eval _]

prints:

1.5

You can actually create several Python interpreters, if the tclpython package was linked against a Python library compiled with threads support, otherwise only 1 Python interpreter can exist at a time.

Notes:

for Python 2.2 and above, the automatic import site on a new thread is suppressed because it otherwise makes the program hang (you can still use import site in your code, as described at the top of the Lib/site.py file).
on a Redhat system, use the tclpython rpm on my homepage.

tclpython is used by the moodss system monitoring software (information on my homepage) to allow its modules to be written in Python as well as Tcl and Perl.

Send your comments, complaints, ... to jfontain@free.fr.
My homepage is at http://jfontain.free.fr/.