gh-95534: Improve gzip reading speed by 10% by rhpvorderman · Pull Request #97664 · python/cpython

…thon.

The gzip._GzipReader we're inheriting from had some changes to stay up
to date with changes in zlib library and to perform some optimization.

Specifically:

- GzipFile.read has been optimized. There is no longer a unconsumed_tail
  member to write back to padded file. This is instead handled by the
  ZlibDecompressor itself, which has an internal buffer.
- _add_read_data has been inlined, as it was just two calls.

We've adapted our own code to reflect these changes.

More info: python/cpython#97664

…thon.

The gzip._GzipReader we're inheriting from had some changes to stay up
to date with changes in zlib library and to perform some optimization.

Specifically:

- GzipFile.read has been optimized. There is no longer a unconsumed_tail
  member to write back to padded file. This is instead handled by the
  ZlibDecompressor itself, which has an internal buffer.
- _add_read_data has been inlined, as it was just two calls.

We've adapted our own code to reflect these changes.

More info: python/cpython#97664