Currently MPT uses the python pickle format. The problem with this is that it is not portable between different versions of python, and has problems with custom classes. So, the MPT format should be changed to use XDR which is the same format TRR and TPR files are stored in.
Currently MPT uses the python pickle format. The problem with this is that it is not portable between different versions of python, and has problems with custom classes. So, the MPT format should be changed to use XDR which is the same format TRR and TPR files are stored in.