diff --git a/README.md b/README.md
index 1bd66b9..e1cd5d6 100644
--- a/README.md
+++ b/README.md
@@ -1046,6 +1046,24 @@ class MyCollection:
yield el
```
+### Iterator
+```python
+class Counter:
+ def __init__(self):
+ self.i = 0
+ def __next__(self):
+ self.i += 1
+ return self.i
+ def __iter__(self):
+ return self
+```
+
+```python
+>>> counter = Counter()
+>>> next(counter), next(counter), next(counter)
+(1, 2, 3)
+```
+
### Callable
```python
class Counter:
diff --git a/index.html b/index.html
index fea4acc..bc6664b 100644
--- a/index.html
+++ b/index.html
@@ -981,6 +981,20 @@ creature = Creature(Point(0, for el in self.a:
yield el
+Iterator
+class Counter:
+ def __init__(self):
+ self.i = 0
+ def __next__(self):
+ self.i += 1
+ return self.i
+ def __iter__(self):
+ return self
+
+>>> counter = Counter()
+>>> next(counter), next(counter), next(counter)
+(1, 2, 3)
+
Callable
class Counter:
def __init__(self):