[selector] make select a hardcoded argument, and propaget it (see #6)

plotter.py

@@ -232,18 +232,18 @@ class Plotter(Aggregator, BaseProcessor):
 
             self.simulations[run] = simu
 
-    def _not_self_dep(self, name, dep, dep_arg, overwrite, **kwargs):
+    def _not_self_dep(self, name, dep, dep_arg, overwrite, select):
         """
         Check if the dependency belongs to the plotter object or to another one (comp, pp, ..)
         """
         if dep in self.comp.rules:
             result = self.comp.process(
-                dep, dep_arg, overwrite, overwrite_dep=self.overwrite_dep
+                dep, dep_arg, overwrite, self.overwrite_dep, select
             )
             if result is not None:
                 self.just_done.append(result)
         else:
-            super(Plotter, self)._not_self_dep(name, dep, dep_arg, overwrite, **kwargs)
+            super(Plotter, self)._not_self_dep(name, dep, dep_arg, overwrite, select)
 
     def _needs_computation(self, overwrite, plot_filename):
         """
@@ -256,7 +256,15 @@ class Plotter(Aggregator, BaseProcessor):
         )
 
     def _process_rule(
-        self, name, rule, arg, overwrite=False, ax=None, from_cells=False, **kwargs
+        self,
+        name,
+        rule,
+        arg,
+        overwrite=False,
+        select=None,
+        ax=None,
+        from_cells=False,
+        **kwargs,
     ):
         """
         Open storage and figure if needed before processing a rule
@@ -282,8 +290,7 @@ class Plotter(Aggregator, BaseProcessor):
         filetype = filetype_from_ext[self.pp_params.out.ext]
 
         # Select runs and nums
-        if "select" in kwargs:
-            select = kwargs.pop("select")
+        if select is not None:
             runs, nums = self.selector.select(**select)
         else:
             runs = self.runs