removed 1st edition code

16-op-overloading/bingo.py

@@ -1,28 +0,0 @@
-# BEGIN TOMBOLA_BINGO
-
-import random
-
-from tombola import Tombola
-
-
-class BingoCage(Tombola):  # <1>
-
-    def __init__(self, items):
-        self._randomizer = random.SystemRandom()  # <2>
-        self._items = []
-        self.load(items)  # <3>
-
-    def load(self, items):
-        self._items.extend(items)
-        self._randomizer.shuffle(self._items)  # <4>
-
-    def pick(self):  # <5>
-        try:
-            return self._items.pop()
-        except IndexError:
-            raise LookupError('pick from empty BingoCage')
-
-    def __call__(self):  # <7>
-        self.pick()
-
-# END TOMBOLA_BINGO