[plotter] deal with no sinks snaps (+ cosmetics)

plotter.py

@@ -378,9 +378,7 @@ class Plotter(Aggregator, BaseProcessor):
 
         return datafiles
 
-    def _plot_rule(
+    def _plot_rule(self, rule, arg, plot_filename, overwrite, ax, close=True, **kwargs):
-        self, rule, arg, plot_filename, overwrite, ax, close=True, **kwargs
-    ):
         """
         Once all dependencies are met, actually process the rule
         """
@@ -610,12 +608,12 @@ class Plotter(Aggregator, BaseProcessor):
             scalebar = AnchoredSizeBar(
                 plt.gca().transData,
                 scalebar_size,
-                f'{scalebar_size} {unit_str(unit_space)[2:-1]}',
+                f"{scalebar_size} {unit_str(unit_space)[2:-1]}",
-                'lower left',
+                "lower left",
                 pad=1,
-                color='white',
+                color="white",
                 frameon=False,
-                size_vertical=1
+                size_vertical=1,
             )
             plt.gca().add_artist(scalebar)
 
@@ -635,12 +633,14 @@ class Plotter(Aggregator, BaseProcessor):
 
         if colorbar:
             if embeded:
-                cbaxes = inset_axes(ax, width="10%", height="100%", loc="right", borderpad=0)
+                cbaxes = inset_axes(
-                cbar = plt.colorbar(cax=cbaxes, orientation='vertical')
+                    ax, width="10%", height="100%", loc="right", borderpad=0
-                cbaxes.yaxis.set_ticks_position('left')
+                )
-                cbaxes.yaxis.set_label_position('left')
+                cbar = plt.colorbar(cax=cbaxes, orientation="vertical")
+                cbaxes.yaxis.set_ticks_position("left")
+                cbaxes.yaxis.set_label_position("left")
                 cbaxes.yaxis.set_tick_params(color="white", which="both")
-                plt.setp(plt.getp(cbaxes.axes, 'yticklabels'), color="white")
+                plt.setp(plt.getp(cbaxes.axes, "yticklabels"), color="white")
                 cbar.outline.set_edgecolor("white")
                 cbaxes.tick_params(axis="y", direction="in", pad=-25)
                 plt.sca(ax)
@@ -715,7 +715,9 @@ class Plotter(Aggregator, BaseProcessor):
         """
         Add an overlay : contour of other map
         """
-        map_contour = self.current_processor.get_value("/maps/{}_{}".format(map_name, ax_los))
+        map_contour = self.current_processor.get_value(
+            "/maps/{}_{}".format(map_name, ax_los)
+        )
         if log:
             map_contour = np.log10(map_contour)
         # Computing linewidths
@@ -776,7 +778,7 @@ class Plotter(Aggregator, BaseProcessor):
         center_space=False,
         parts=True,
         sinks=False,
-        **kwargs
+        **kwargs,
     ):
         """
         Add an overlay with particles data
@@ -785,11 +787,17 @@ class Plotter(Aggregator, BaseProcessor):
         unit_length = self.current_processor.info["unit_length"]
 
         if sinks:
+            try:
                 self.current_processor.sinks()
-            sinks = pd.DataFrame(self.current_processor.get_value("/datasets/sinks"))
+                sinks = pd.DataFrame(
+                    self.current_processor.get_value("/datasets/sinks")
+                )
                 part_pos = sinks[["x", "y", "z"]].values
                 mass = sinks.M
                 unit_length /= self.current_processor.lbox
+            except KeyError:
+                self.current_processor._log("No sinks particles", "WARNING")
+                return
         elif parts:
             # Open particle HDF5 filetype_from_ext
             self.current_processor.load_parts(keys=["pos", "mass"])
@@ -841,7 +849,9 @@ class Plotter(Aggregator, BaseProcessor):
         dmap_vh = self.current_processor.get_value("/maps/speed_h_{}".format(ax_los))
         dmap_vv = self.current_processor.get_value("/maps/speed_v_{}".format(ax_los))
 
-        label, unit_old, unit = self._ax_label_unit(f"/maps/speed_h_{ax_los}", "", unit, unit_coeff)
+        label, unit_old, unit = self._ax_label_unit(
+            f"/maps/speed_h_{ax_los}", "", unit, unit_coeff
+        )
 
         vel_red = self.params.plot.vel_red
 
@@ -1187,7 +1197,8 @@ class Plotter(Aggregator, BaseProcessor):
                 color = colors[run]
             elif nml_color == "time":
                 time = (
-                    self.current_processor.time * self.current_processor.info["unit_time"]
+                    self.current_processor.time
+                    * self.current_processor.info["unit_time"]
                 ).express(unit_time)
                 color = colors(time)
             else: