add an __len__ to Set and Stack
diff --git a/Lib/compiler/misc.py b/Lib/compiler/misc.py
index 0dc6422..a281c10 100644
--- a/Lib/compiler/misc.py
+++ b/Lib/compiler/misc.py
@@ -1,6 +1,8 @@
class Set:
def __init__(self):
self.elts = {}
+ def __len__(self):
+ return len(self.elts)
def add(self, elt):
self.elts[elt] = elt
def items(self):
@@ -14,6 +16,8 @@
def __init__(self):
self.stack = []
self.pop = self.stack.pop
+ def __len__(self):
+ return len(self.stack)
def push(self, elt):
self.stack.append(elt)
def top(self):