hover_data (closes #6 )

* Adds `hover_data` alongside `hover_name`
* threads both through to marginal plots
* adds `marginal` to `histogram`
* fixes `rug` marginal plots for `density_contours`
* dedupes hoverlabel entries

Author: nicolaskruchten

plotly_express/_chart_types.py

@@ -21,6 +21,7 @@ def scatter(
     symbol=None,
     size=None,
     hover_name=None,
+    hover_data=None,
     text=None,
     facet_row=None,
     facet_col=None,
@@ -70,6 +71,8 @@ def density_contour(
     color=None,
     facet_row=None,
     facet_col=None,
+    hover_name=None,
+    hover_data=None,
     animation_frame=None,
     animation_group=None,
     category_orders={},
@@ -111,6 +114,7 @@ def line(
     color=None,
     line_dash=None,
     hover_name=None,
+    hover_data=None,
     text=None,
     facet_row=None,
     facet_col=None,
@@ -154,6 +158,7 @@ def bar(
     facet_row=None,
     facet_col=None,
     hover_name=None,
+    hover_data=None,
     text=None,
     error_x=None,
     error_x_minus=None,
@@ -165,6 +170,7 @@ def bar(
     labels={},
     color_discrete_sequence=default_qualitative,
     color_discrete_map={},
+    opacity=None,
     orientation="v",
     barmode="relative",
     log_x=False,
@@ -197,12 +203,16 @@ def histogram(
     color=None,
     facet_row=None,
     facet_col=None,
+    hover_name=None,
+    hover_data=None,
     animation_frame=None,
     animation_group=None,
     category_orders={},
     labels={},
     color_discrete_sequence=default_qualitative,
     color_discrete_map={},
+    marginal=None,
+    opacity=None,
     orientation="v",
     barmode="relative",
     barnorm=None,
@@ -248,6 +258,8 @@ def violin(
     color=None,
     facet_row=None,
     facet_col=None,
+    hover_name=None,
+    hover_data=None,
     animation_frame=None,
     animation_group=None,
     category_orders={},
@@ -293,6 +305,8 @@ def box(
     color=None,
     facet_row=None,
     facet_col=None,
+    hover_name=None,
+    hover_data=None,
     animation_frame=None,
     animation_group=None,
     category_orders={},
@@ -336,6 +350,7 @@ def scatter_3d(
     size=None,
     text=None,
     hover_name=None,
+    hover_data=None,
     error_x=None,
     error_x_minus=None,
     error_y=None,
@@ -384,6 +399,7 @@ def line_3d(
     text=None,
     line_group=None,
     hover_name=None,
+    hover_data=None,
     error_x=None,
     error_x_minus=None,
     error_y=None,
@@ -428,6 +444,7 @@ def scatter_ternary(
     size=None,
     text=None,
     hover_name=None,
+    hover_data=None,
     animation_frame=None,
     animation_group=None,
     category_orders={},
@@ -463,6 +480,7 @@ def line_ternary(
     line_dash=None,
     line_group=None,
     hover_name=None,
+    hover_data=None,
     text=None,
     animation_frame=None,
     animation_group=None,
@@ -495,6 +513,7 @@ def scatter_polar(
     symbol=None,
     size=None,
     hover_name=None,
+    hover_data=None,
     text=None,
     animation_frame=None,
     animation_group=None,
@@ -535,6 +554,7 @@ def line_polar(
     color=None,
     line_dash=None,
     hover_name=None,
+    hover_data=None,
     line_group=None,
     text=None,
     animation_frame=None,
@@ -572,6 +592,7 @@ def bar_polar(
     theta=None,
     color=None,
     hover_name=None,
+    hover_data=None,
     animation_frame=None,
     animation_group=None,
     category_orders={},
@@ -610,6 +631,7 @@ def choropleth(
     locationmode=None,
     color=None,
     hover_name=None,
+    hover_data=None,
     size=None,
     animation_frame=None,
     animation_group=None,
@@ -648,6 +670,7 @@ def scatter_geo(
     color=None,
     text=None,
     hover_name=None,
+    hover_data=None,
     size=None,
     animation_frame=None,
     animation_group=None,
@@ -689,6 +712,7 @@ def line_geo(
     line_dash=None,
     text=None,
     hover_name=None,
+    hover_data=None,
     line_group=None,
     animation_frame=None,
     animation_group=None,
@@ -726,6 +750,7 @@ def scatter_mapbox(
     color=None,
     text=None,
     hover_name=None,
+    hover_data=None,
     size=None,
     animation_frame=None,
     animation_group=None,
@@ -758,6 +783,7 @@ def line_mapbox(
     color=None,
     text=None,
     hover_name=None,
+    hover_data=None,
     line_group=None,
     animation_frame=None,
     animation_group=None,
@@ -786,6 +812,8 @@ def scatter_matrix(
     color=None,
     symbol=None,
     size=None,
+    hover_name=None,
+    hover_data=None,
     category_orders={},
     labels={},
     color_discrete_sequence=default_qualitative,