HLTMPPy: Flush python printouts
The output flushing behaves differently in python 2/3. In order to avoid mangling with output from C++, ensure the buffer is being flushed.
Fixes ATR-20893.
The output flushing behaves differently in python 2/3. In order to avoid mangling with output from C++, ensure the buffer is being flushed.
Fixes ATR-20893.