tweak

Author: nicolaskruchten

gallery.md

@@ -5,7 +5,7 @@ jupyter:
     text_representation:
       extension: .md
       format_name: markdown
-      format_version: "1.1"
+      format_version: '1.1'
       jupytext_version: 1.1.1
   kernelspec:
     display_name: Python 3

plotly_express/_core.py

@@ -845,11 +845,7 @@ def make_figure(args, constructor, trace_patch={}, layout_patch={}):
                 )
             if trace_spec.constructor in [go.Bar, go.Violin, go.Box, go.Histogram]:
                 trace.update(alignmentgroup=True, offsetgroup=trace_name)
-            if trace_spec.constructor not in [
-                go.Parcats,
-                go.Parcoords,
-                go.Histogram2dContour,
-            ]:
+            if trace_spec.constructor not in [go.Parcats, go.Parcoords]:
                 trace.update(hoverlabel=dict(namelength=0))
             trace_names.add(trace_name)
             for i, m in enumerate(grouped_mappings):