my enumerate example 1

python-temel/myenumerate.py

@@ -0,0 +1,23 @@
+class myenumerate:
+    def __init__(self, iterable):
+        self._iterator = iter(iterable)
+
+    def __iter__(self):
+        return myenumerate_iterator(self._iterator)
+
+class myenumerate_iterator:
+    def __init__(self, iterator):
+        self._iterator = iterator
+        self._index = 0
+
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        self._index += 1
+        return self._index - 1, self._iterator.__next__()
+
+a = [10, 20, 30, 40, 50]
+
+for index, val in myenumerate(a):
+    print(index, '=>', val)