Merge pull request #4551 from neutrinoceros/cmap_avoid_double_copies

yt-project · Jun 28, 2023 · 0db75b9 · 0db75b9
2 parents 56c50e3 + f90c800
commit 0db75b9
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/yt/visualization/color_maps.py b/yt/visualization/color_maps.py
@@ -48,7 +48,8 @@ def register_yt_colormaps_from_cmyt():
     """
 
     for hist_name, alias in _HISTORICAL_ALIASES.items():
-        cmap = mpl.colormaps[alias].copy()
+        # note that mpl.colormaps.__getitem__ returns *copies*
+        cmap = mpl.colormaps[alias]
         cmap.name = hist_name
         mpl.colormaps.register(cmap)
         mpl.colormaps.register(cmap.reversed())