From 588f06736b9da07b60efc3b03fc14581ef1a4113 Mon Sep 17 00:00:00 2001
From: Corey Schafer <CoreyMSchafer@gmail.com>
Date: Tue, 23 Oct 2018 17:44:00 -0600
Subject: [PATCH] Iterators Tutorial

---
 Python/Iterators-Coding-Problem/iter-demo.py | 41 ++++++++++++++++++++
 Python/Iterators/iter-demo.py                | 29 ++++++++++++++
 2 files changed, 70 insertions(+)
 create mode 100644 Python/Iterators-Coding-Problem/iter-demo.py
 create mode 100644 Python/Iterators/iter-demo.py

diff --git a/Python/Iterators-Coding-Problem/iter-demo.py b/Python/Iterators-Coding-Problem/iter-demo.py
new file mode 100644
index 000000000..1aa477a7c
--- /dev/null
+++ b/Python/Iterators-Coding-Problem/iter-demo.py
@@ -0,0 +1,41 @@
+
+class Sentence:
+
+    def __init__(self, sentence):
+        self.sentence = sentence
+        self.index = 0
+        self.words = self.sentence.split()
+
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        if self.index >= len(self.words):
+            raise StopIteration
+        index = self.index
+        self.index += 1
+        return self.words[index]
+
+
+def sentence(sentence):
+    for word in sentence.split():
+        yield word
+
+
+my_sentence = sentence('This is a test')
+
+# for word in my_sentence:
+#     print(word)
+
+print(next(my_sentence))
+print(next(my_sentence))
+print(next(my_sentence))
+print(next(my_sentence))
+print(next(my_sentence))
+
+
+# This should have the following output:
+# This
+# is
+# a
+# test
diff --git a/Python/Iterators/iter-demo.py b/Python/Iterators/iter-demo.py
new file mode 100644
index 000000000..e4fae6da2
--- /dev/null
+++ b/Python/Iterators/iter-demo.py
@@ -0,0 +1,29 @@
+
+class MyRange:
+
+    def __init__(self, start, end):
+        self.value = start
+        self.end = end
+
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        if self.value >= self.end:
+            raise StopIteration
+        current = self.value
+        self.value += 1
+        return current
+
+
+def my_range(start):
+    current = start
+    while True:
+        yield current
+        current += 1
+
+
+nums = my_range(1)
+
+for num in nums:
+    print(num)