Config: read task toughness

repartir_taches/config.py

@@ -11,6 +11,7 @@ class Task:
     name: str
     qualified_name: str
     descr: str
+    tough: int
     notes: str
     time: str
     nb_groups: int
@@ -89,6 +90,7 @@ class Config:
             name=task["nom"],
             qualified_name=qual_name,
             descr=task["descr"].format(**self.env),
+            tough=int(task["penible"]),
             notes=task.get("notes", ""),
             time=task.get("heure", ""),
             nb_groups=int(task.get("nb_groupes", 1)),