Use booleans.
diff --git a/Lib/weakref.py b/Lib/weakref.py
index 66c4dc6..468f8f1 100644
--- a/Lib/weakref.py
+++ b/Lib/weakref.py
@@ -166,7 +166,7 @@
def popitem(self):
if self._pending_removals:
self._commit_removals()
- while 1:
+ while True:
key, wr = self.data.popitem()
o = wr()
if o is not None:
@@ -324,7 +324,7 @@
try:
wr = ref(key)
except TypeError:
- return 0
+ return False
return wr in self.data
def items(self):
@@ -362,7 +362,7 @@
return list(self.data)
def popitem(self):
- while 1:
+ while True:
key, value = self.data.popitem()
o = key()
if o is not None: