The OBF (and MSR) file format is used within my department quite frequently. The Imspector Python connection is limited to a certain CPython version and OS system. To allow analysis everywhere I made a pure Python OBF content reader.
Use obf_support.py and see obf_support_example.py for an example.
Can read OBF files with the data of stacks written in a chunked, interleaved format (i.e. stack format version 6).