updated contents from Atlas repo

interfaces/tombolist.py

@@ -0,0 +1,19 @@
+from random import randrange
+
+from tombola import Tombola
+
+
+class TomboList(list):  # <1>
+
+    def pop(self):
+        if self:  # <2>
+            return super().pop(randrange(len(self)))  # <3>
+        else:
+            raise LookupError('pop from empty TomboList')
+
+    def load(self, iterable): self.extend(iterable)  # <4>
+
+    def loaded(self): return bool(self)  # <5>
+
+
+Tombola.register(TomboList)  # <6>