Deprecation warning with Python 3.9 and test.py completely fails - patches included

[juliangilbey]

Python is no longer happy with using size_t for the type of the size argument to PyArg_ParseTupleAndKeywords. This patch fixes this:

deprecation-warning.patch

The test.py file fails for two reasons: first, the functions are called compress and decompress, and second, there is no file_compress/file_decompress method defined. This patch fixes these by renaming the functions and removing the file testing part of the code:

broken-test.patch