# function convention

The Python function, that can be used with Uranie, receives item values directly in the function 
parameters and return an output list (even if they are only one value). The rosenbrock example is 
given below.

{{
    "```{literalinclude} " + parent_dir
    + "/roottest/uranie/doc/relauncher/teval_trun/python/teval_trun.py\n"
    + ":language: python\n"
    + ":lines: 3-6\n"
    + "```"
}}

`TThreadedRun` should now be supported and `TMpiRun` works but exits badly: the C++ destructor is 
not called, resulting in an incorrect MPI exit (MPI_Finalize is not call). Put the `stopSlave` method 
call as last instruction to avoid that evaluation processes stop before master process.

The `TPythonEval` is also able to deal with vectors and strings as inputs and outputs. If the way to 
deal with string is transparent, vector are just simple plain list of real.