python in Fityk

[equilib...@gmail.com]

Hello,

I'd like to to bind a python script to Fityk in MacOS that way:

=-> ! python Helloworld.py

Nothing happens. 

If I try

=-> ! python Helloworld.py > test.txt

Everthing seems to run. A test.txt is created and with my "Hello World" inside.

What did I do wrong?

Best greetings,

Steffen