In the current nightly, when I run a Jython script from the command line (runMcV -pyfile t.py), it seems that output from "print" statements in the script, as well as "Traceback" text from Exceptions, is going....nowhere that I can find. Not to the command window and not to the mcidasv.log file.
Running Windows 7, 64-bit. (Running the same script in 1.01 produces the same results...no text output...)