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Bz2: feeding data incrementally into a compressor

Publisher: ResumeMaker • 1 source

Published: 22 Oct 2026 16:11 · Updated: 22 Oct 2026 16:11

AI source check: 22 Oct 2026 14:04. This is not editorial approval.

In a few sentences

In brief

bz2.BZ2Compressor accepts chunks through compress(), while flush() finishes the stream and returns remaining output. The complete file need not be supplied at once.

Useful to know

bz2.BZ2Compressor accepts chunks through compress(), while flush() finishes the stream and returns remaining output. The complete file need not be supplied at once. [1]

Empty intermediate output does not necessarily mean data was lost: the compressor can buffer it. Preserve the call sequence and finishing step. Compression does not add confidentiality; a recipient can restore the contents without a secret key.

Sources

For further detail and to check the information:

  1. [1] bz2 — Support for bzip2 compression — Python 3.12.15 documentation ↗