dbfpy (and many other modules) allow you to read and write DBF files. I donโt know about such modules dealing directly with ADT files, but I think there are converters for creating DBF files to / from ADT, if worse, worse.
Another alternative for accessing ADT files would be to actually run the sybase advantage using the odbc driver - if possible, there are several ways to connect to the ODBC service using Python.
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