Fix for plotly PDPlotter/ChemicalPotentialDiagram.get_plot() (#4292)

* Update deprecated `titlefont` with `plotly` (v6)

* Update `plotly` requirement

Author: kavanase

pyproject.toml

@@ -60,7 +60,7 @@ dependencies = [
     "networkx>=2.7",  # PR4116
     "palettable>=3.3.3",
     "pandas>=2",
-    "plotly>=4.5.0,<6.0.0",
+    "plotly>=5.0.0",
     "pybtex>=0.24.0",
     "requests>=2.32",
     "ruamel.yaml>=0.17.0",

src/pymatgen/util/plotly_chempot_layouts.json

@@ -55,7 +55,7 @@
     "yanchor": "middle"
   },
   "default_2d_axis_layout": {
-    "titlefont": {
+    "title.font": {
       "size": 24
     },
     "gridcolor": "#dbdbdb",
@@ -68,7 +68,7 @@
     "showline": true
   },
   "default_3d_axis_layout": {
-    "titlefont": {
+    "title.font": {
       "size": 18
     },
     "gridcolor": "#dbdbdb",

src/pymatgen/util/plotly_interface_rxn_layouts.json

@@ -13,7 +13,7 @@
         "size": 16.0
       },
       "ticks": "inside",
-      "titlefont": {
+      "title.font": {
         "color": "#000000",
         "size": 20.0
       },
@@ -32,7 +32,7 @@
         "size": 16.0
       },
       "ticks": "inside",
-      "titlefont": {
+      "title.font": {
         "color": "#000000",
         "size": 20.0
       },

src/pymatgen/util/plotly_pd_layouts.json

@@ -21,7 +21,7 @@
         "size": 16.0
       },
       "ticks": "inside",
-      "titlefont": {
+      "title.font": {
         "color": "#000000",
         "size": 20.0
       },
@@ -54,7 +54,7 @@
         "size": 16.0
       },
       "ticks": "inside",
-      "titlefont": {
+      "title.font": {
         "color": "#000000",
         "size": 20.0
       },
@@ -73,7 +73,7 @@
         "size": 16.0
       },
       "ticks": "inside",
-      "titlefont": {
+      "title.font": {
         "color": "#000000",
         "size": 20.0
       },

src/pymatgen/util/plotting.py

@@ -268,8 +268,8 @@ def periodic_table_heatmap(
                 kwargs.setdefault("color_bar", {}).setdefault("title", cbar_label)
                 print('cbar_label is deprecated, use color_bar={"title": cbar_label} instead')
             if cbar_label_size != 14:
-                kwargs.setdefault("color_bar", {}).setdefault("titlefont", {}).setdefault("size", cbar_label_size)
-                print('cbar_label_size is deprecated, use color_bar={"titlefont": {"size": cbar_label_size}} instead')
+                kwargs.setdefault("color_bar", {}).setdefault("title.font", {}).setdefault("size", cbar_label_size)
+                print('cbar_label_size is deprecated, use color_bar={"title.font": {"size": cbar_label_size}} instead')
             if cmap:
                 kwargs.setdefault("colorscale", cmap)
                 print("cmap is deprecated, use colorscale=cmap instead")