Duck types

README.md

@@ -1146,7 +1146,7 @@ class Counter:
 ```
 
 #### Python has many different iterator objects:
-* **Objects returned by the [iter()](#iterator) function, such as list\_iterator and set\_iterator.**
+* **Iterators returned by the [iter()](#iterator) function, such as list\_iterator and set\_iterator.**
 * **Objects returned by the [itertools](#itertools) module, such as count, repeat and cycle.**
 * **Generators returned by the [generator functions](#generator) and [generator expressions](#comprehension).**
 * **File objects returned by the [open()](#open) function, etc.**
@@ -1170,7 +1170,7 @@ class Counter:
 ```
 
 ### Context Manager
-* **Enter() should lock the resources and (optionally) return an object.**
+* **Enter() should lock the resources and optionally return an object.**
 * **Exit() should release the resources.**
 * **Any exception that happens inside the with block is passed to the exit() method.**
 * **If it wishes to suppress the exception it must return a true value.** 

index.html

@@ -1093,7 +1093,7 @@ Z = dataclasses.make_dataclass(<span class="hljs-string">'Z'</span>, [<span clas
 (<span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>)
 </code></pre>
 <div><h4 id="pythonhasmanydifferentiteratorobjects">Python has many different iterator objects:</h4><ul>
-<li><strong>Objects returned by the <a href="#iterator">iter()</a> function, such as list_iterator and set_iterator.</strong></li>
+<li><strong>Iterators returned by the <a href="#iterator">iter()</a> function, such as list_iterator and set_iterator.</strong></li>
 <li><strong>Objects returned by the <a href="#itertools">itertools</a> module, such as count, repeat and cycle.</strong></li>
 <li><strong>Generators returned by the <a href="#generator">generator functions</a> and <a href="#comprehension">generator expressions</a>.</strong></li>
 <li><strong>File objects returned by the <a href="#open">open()</a> function, etc.</strong></li>
@@ -1116,7 +1116,7 @@ Z = dataclasses.make_dataclass(<span class="hljs-string">'Z'</span>, [<span clas
 (<span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3</span>)
 </code></pre>
 <div><h3 id="contextmanager">Context Manager</h3><ul>
-<li><strong>Enter() should lock the resources and (optionally) return an object.</strong></li>
+<li><strong>Enter() should lock the resources and optionally return an object.</strong></li>
 <li><strong>Exit() should release the resources.</strong></li>
 <li><strong>Any exception that happens inside the with block is passed to the exit() method.</strong></li>
 <li><strong>If it wishes to suppress the exception it must return a true value.</strong> </li>