faster reverse

Author: facelessuser

coloraide/algebra.py

@@ -2062,7 +2062,7 @@ def transpose(array: ArrayLike | float) -> Array | float:
     we don't have a need for that, nor the desire to figure it out :).
     """
 
-    s = tuple(reversed(shape(array)))
+    s = shape(array)[::-1]
     if not s:
         return array  # type: ignore[return-value]
 

docs/src/py/notebook.py

@@ -696,21 +696,21 @@ def _color_command_formatter(src="", language="", class_name=None, options=None,
                 freq = 16
                 offset = 24
 
-            primary = list(reversed(colors[::freq]))
-            secondary = list(reversed(colors[offset::freq] + [colors[offset // 3]]))
-            tertiary = list(reversed(colors[::offset // 6]))
+            primary = colors[::freq][::-1]
+            secondary = colors[offset::freq] + [colors[offset // 3]][::-1]
+            tertiary = colors[::offset // 6][::-1]
             color_rings = [primary, secondary, tertiary]
 
             extra_rings_start = ''
             extra_rings_end = ''
             if l > 12:
                 extra_rings_start = '<div class="tertiary2">'
                 extra_rings_end += '</div>'
-                color_rings.append(list(reversed(colors[::offset // 12])))
+                color_rings.append(colors[::offset // 12][::-1])
             if l > 24:
                 extra_rings_start = '<div class="tertiary3">' + extra_rings_start
                 extra_rings_end += '</div>'
-                color_rings.append(list(reversed(colors)))
+                color_rings.append(colors[::-1])
 
             color_stops = ''
             for i, colors in enumerate(color_rings, 1):

tools/slice_diagram.py

@@ -257,7 +257,7 @@ def plot_slice(
 
         if hue_index == -1:
             # Combine the min/max values in one shape
-            edge_x.extend(reversed(temp))
+            edge_x.extend(temp[::-1])
             # Close shape
             edge_x.append(edge_x[0])
 
@@ -271,7 +271,7 @@ def plot_slice(
                 edge_y.append((edges[0], p1))
                 temp.append((edges[1], p1))
 
-            edge_y.extend(reversed(temp))
+            edge_y.extend(temp[::-1])
             edge_y.append(edge_y[0])
 
             # Get the intersection of X and Y to get the most accurate border