update from Atlas

11-iface-abc/lotto.py

@@ -0,0 +1,24 @@
+import random
+
+from tombola import Tombola
+
+
+class LotteryBlower(Tombola):
+
+    def __init__(self, iterable):
+        self.randomizer = random.SystemRandom()  # <1>
+        self.clear()
+        self.load(iterable)
+
+    def clear(self):
+        self._balls = []
+
+    def load(self, iterable):
+        self._balls.extend(iterable)
+        self.randomizer.shuffle(self._balls)  # <2>
+
+    def pick(self):
+        return self._balls.pop()  # <3>
+
+    def loaded(self):  # <4>
+        return len(self._balls) > 0