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7zip in python3 with ZStandard, PPMd, LZMA2, LZMA1, Delta, BCJ, BZip2, and Deflate compressions, and AES encryption.
pyppmd provides classes and functions for compressing and decompressing text data, using PPM (Prediction by partial matching) compression algorithm variation H and I.2. It provide an API similar to Python's zlib/bz2/lzma modules.