Package: python3-fastparquet
Version: 2026.5.0-1
Severity: grave
Justification: renders package unusable
I am currently upgrading pandas, and as part of this, attempted to test
its parquet I/O functionality. This failed to even import fastparquet,
with the error
AttributeError: module 'cramjam' has no attribute 'gzip'. Did you mean:
'bzip2'?
e.g. https://salsa.debian.org/science-team/pandas/-/jobs/9907658
(fastparquet's own autopkgtest does not actually test anything, because
plain pybuild-autopkgtest cannot find the tests. This is probably a bug
in itself.)
I do not know whether this bug is actually in fastparquet or in cramjam;
it is not *obviously* known to either upstream.