Improve error message of `compression.zstd.ZstdError`

[smiRaphi]

Feature or enhancement

Proposal:

When the underlying libzstd of compression.zstd encounters an error, compression.zstd only raises a vague "Unable to decompress Zstandard data: Data corruption detected" while libzstd is way more verbose about what actually went wrong, my proposal is to either raise a more descriptive error or expose the raw return code in ZstdError.

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response

Linked PRs

• gh-153621: Expose raw libzstd error code in ZstdError messages #153641

[picnixz]

It is a bit more delicate to change an API that was already decided by a PEP but adding an attribute to exceptions with the error code may be relevant.

cc @emmatyping

[smiRaphi]

I'm not talking about changing the exception class name, just making the Message more descriptive

[picnixz]

If it is just about the message it is fine! I did so for curses.

[emmatyping]

Agreed it would be better to raise with a more descriptive message. @smiRaphi would you like to open a PR?