Use namespaced "matplotlib:coolwarm" to silence cmap ambiguity warning - #1079
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kushalkolar merged 1 commit intoSep 11, 2026
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<details><summary>Claude's draft</summary>
`cmap.Colormap("coolwarm")` is ambiguous because "coolwarm" exists in
both the matplotlib and paraview catalogs, so `cmap` emits:
WARNING: The name 'coolwarm' is an alias for 'matplotlib:coolwarm',
but is also available as: 'paraview:coolwarm'.
To silence this warning, use a fully namespaced name.
Use the fully namespaced `"matplotlib:coolwarm"` in the `COLORMAPS`
list, matching the pattern already used for other ambiguous names in
this list (`tol:`, `matlab:`, `vispy:`, `gnuplot:`, `yorick:`). This is
supported by `cmap>=0.1.3`, which is already fastplotlib's declared
minimum, so no dependency bump is needed.
Resume this Claude session:
```
cd /Users/mark/git/pygfx/fastplotlib
claude --resume 4d91ae6a-7744-4d7e-90b3-d8c929fee89f
```
</details>
Claude-Session: https://claude.ai/code/session_01XccZFAE1DAEaEx7LBhXE5W
hmaarrfk
marked this pull request as ready for review
September 10, 2026 16:34
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Hey @kushalkolar hopefully this one liner is ok with you!
This avoids a warning like:
This PR was written by Mark's AI agent (Claude Code). Mark has not yet reviewed this PR.Reviewed it now!
More stuff from claude
Summary
"coolwarm"is ambiguous in thecmappackage's catalog (present in both thematplotlibandparaviewnamespaces), socmap.Colormap("coolwarm")emits the ambiguity warning above."matplotlib:coolwarm"inCOLORMAPS, matching the pattern already used for other ambiguous names in that list (tol:,matlab:,vispy:,gnuplot:,yorick:).cmap>=0.1.3, which is already fastplotlib's declared minimum dependency, so no dependency bump is needed.Test plan
fastplotlib.utils.functionsafter the change."coolwarm"was not referenced as a literal string anywhere else in the codebase.https://claude.ai/code/session_01XccZFAE1DAEaEx7LBhXE5W