Add missing space in unsupported-marginal error message

eugen-goebel · eugen-goebel · commit 8d47808d642d · 2026-06-20T20:33:01.000+02:00
Follow-up to #5625. The f-string refactor merged there concatenated two adjacent string literals without a separating space, so the message rendered as "...for `marginal_x`.Supported marginal plot types...". This restores the space after the period.
diff --git a/plotly/express/_core.py b/plotly/express/_core.py
@@ -973,7 +973,7 @@ def make_trace_spec(args, constructor, attrs, trace_patch):
                 )
             else:
                 raise ValueError(
-                    f"Invalid value '{args['marginal_' + letter]}' for `marginal_{letter}`."
+                    f"Invalid value '{args['marginal_' + letter]}' for `marginal_{letter}`. "
                     "Supported marginal plot types are: 'rug', 'box', 'violin', 'histogram'."
                 )
             if "color" in attrs or "color" not in args:

Original file line number	Diff line number	Diff line change
`@@ -973,7 +973,7 @@ def make_trace_spec(args, constructor, attrs, trace_patch):`
`973`	`973`	`)`
`974`	`974`	`else:`
`975`	`975`	`raise ValueError(`
`976`		- f"Invalid value '{args['marginal_' + letter]}' for `marginal_{letter}`."
	`976`	+ f"Invalid value '{args['marginal_' + letter]}' for `marginal_{letter}`. "
`977`	`977`	`"Supported marginal plot types are: 'rug', 'box', 'violin', 'histogram'."`
`978`	`978`	`)`
`979`	`979`	`if "color" in attrs or "color" not in args:`