fsspec / fsspec/filesystem_spec

compressors to cramjam

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Dominant language
Python
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Description

Just as fastparquet found, having all the compressors in the fast and compact cramjam library really makes things simple. I am suggesting that, if cramjam is installed, we should get all de/compressors from there, rather than import all of the optional zstandard, snappy, lz4, ...

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Research direction

No file or test is named. Start by locating the compressor and optional-dependency entry points, then trace how zstandard, snappy, lz4, and related codecs are selected. Done means that, when cramjam is installed, all supported compression and decompression uses it instead of the individual optional packages.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
backend
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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