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rredlist vs silx

A side-by-side editorial comparison of rredlist and silx — release velocity, themes, recent moves, and the top alternatives to consider.

rredlist vs silx: at a glance

Featurerredlistsilx
SectorAnalyticsAnalytics
Velocity score0.05.0
Sparks · 30d00
Top themesiucn-red-list, api-migration, breaking-change, bulk-retrievalscientific-computing, data-visualization, synchrotron, qt
Last editorial update5d ago5h ago
WebsiteVisit →Visit →

What is rredlist?

rredlist threw out its species-centric API in 1.0.0 and rebuilt around assessments.

rredlist 1.0.0 is a hard break: the IUCN Red List API moved to v4, and the package followed by dropping v3 support entirely, reorganising around assessments rather than species, renaming or removing most functions, changing returned data structures, and requiring users to generate a new API key. The two releases since are consolidation on that new shape — `rl_assessment_list()` and `rl_assessment_extract()` for retrieving and unpacking many assessments at once, a `scope` argument on the `*_latest()` functions, and NULL-safe extraction.

Read the full rredlist trajectory →

What is silx?

silx settles into maintenance a release after its PySide6 migration

silx is in the quiet phase after a generational release. 3.1.1 is a single fix to FitWidget loading a fit function from file. The release before it, 3.1.0, was the first real feature work since the migration - asinh axis scaling, twilight colormaps, and dark-theme icons - and 3.0.1 was similarly small. The 3.0.0 cut that reset the Qt binding and Python floor still defines what the line is doing.

Read the full silx trajectory →

rredlist vs silx: editorial side-by-side

R
rredlist
ANALYTICS
0.0

rredlist threw out its species-centric API in 1.0.0 and rebuilt around assessments.

◆ Current state

rredlist 1.0.0 is a hard break: the IUCN Red List API moved to v4, and the package followed by dropping v3 support entirely, reorganising around assessments rather than species, renaming or removing most functions, changing returned data structures, and requiring users to generate a new API key. The two releases since are consolidation on that new shape — `rl_assessment_list()` and `rl_assessment_extract()` for retrieving and unpacking many assessments at once, a `scope` argument on the `*_latest()` functions, and NULL-safe extraction.

◆ Where it's heading

Post-1.0.0 work is clearly aimed at bulk use: fetch many assessments, pull a chosen field out of each. That is a different usage pattern from the one-species-at-a-time queries the v3-era functions encouraged, and it suits the conservation-analysis workloads the package is actually used for. Deprecated v3 functions are still present and flagged for eventual removal.

◆ Prediction

The deprecated v3-era functions are the obvious next thing to disappear, and further bulk-retrieval helpers are likely given both post-1.0 releases went that way.

S
silx
ANALYTICS
5.0

silx settles into maintenance a release after its PySide6 migration

◆ Current state

silx is in the quiet phase after a generational release. 3.1.1 is a single fix to FitWidget loading a fit function from file. The release before it, 3.1.0, was the first real feature work since the migration - asinh axis scaling, twilight colormaps, and dark-theme icons - and 3.0.1 was similarly small. The 3.0.0 cut that reset the Qt binding and Python floor still defines what the line is doing.

◆ Where it's heading

The cadence has slowed markedly since April, and the content has shifted from structural change to plotting and colormap refinement. That is the expected shape after a binding migration: downstream beamline code needs a stable target, so the project trades feature velocity for a quiet surface. The gap between 3.0.1 in May and 3.1.0 in August is the clearest signal of the deliberate slowdown.

◆ Prediction

Expect further point releases servicing the plotting and fitting widgets rather than another structural change, with feature work continuing to arrive in the 3.1.x minors rather than patches.

Alternatives to rredlist and silx

Other Analytics products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either rredlist or silx.

See all rredlist alternatives → · See all silx alternatives →

Recent activity from rredlist and silx

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 8h agosilxFitWidget fix for loading a fit function from file
  2. 9d agosilx3.1.0: asinh axis scaling, twilight colormaps, dark-theme icons
  3. 3mo agosilx3.0.1: silx view fails to disable HDF5 file locking
  4. 3mo agosilx3.0.0: PySide6 becomes the default Qt binding, Python 3.10 required
  5. 3mo agosilx3.0.0rc1: release candidate for the PySide6 migration
  6. 11mo agorredlistrredlist 1.1.1 extracts multiple assessment elements
  7. 1y agorredlistrredlist 1.1.0 adds bulk assessment retrieval and extraction
  8. 1y agosilx2.2.2: plot axes limits, OpenGL axes and libhdf5 1.14 fixes
  9. 1y agorredlistrredlist 1.0.0 rebuilds on IUCN Red List API v4
  10. 3y agorredlistrredlist 0.7.1 changes maintainer
  11. 5y agorredlistrredlist 0.7.0 adds vignette and HTTPS base URL
  12. 6y agorredlistrredlist 0.6.0 improves docs and NA handling

Frequently asked questions

What is the difference between rredlist and silx?

They serve adjacent needs but don't currently overlap on shipped themes. silx is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is rredlist better than silx?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. silx is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.

What are the best alternatives to rredlist?

Top rredlist alternatives in Analytics are ranked by recent ship velocity. Browse the "rredlist alternatives" section above for the current picks, or visit /alternatives/rredlist for the full list with editorial commentary on each.

What are the best alternatives to silx?

Top silx alternatives in Analytics are ranked by recent ship velocity. Browse the "silx alternatives" section above for the current picks, or visit /alternatives/silx for the full list with editorial commentary on each.