Type

README.md

@@ -232,17 +232,9 @@ Type
 
 ```python
 <type>  = type(<el>)                      # Or: <type> = <el>.__class__
-<bool>  = isinstance(<el>, <type>)        # Also true if 'type' is a superclass of el's type.
+<bool>  = isinstance(<el>, <type>)        # Also checks subclasses and ABCs.
 ```
 
-```python
-<tuple> = <type>.__bases__                # A tuple of type's parents.
-<list>  = <type>.mro()                    # Returns a list of all type's superclasses.
-<bool>  = issubclass(<sub_type>, <type>)  # Checks if 'sub_type' is a subclass of 'type'.
-```
-
-* **Every class is a subclass and a superclass of itself.**
-
 ```python
 >>> type('a'), 'a'.__class__, str
 (<class 'str'>, <class 'str'>, <class 'str'>)
@@ -254,6 +246,7 @@ from types import FunctionType, MethodType, LambdaType, GeneratorType
 ```
 
 ### ABC-s
+**Abstract base classes introduce virtual subclasses, that don’t inherit from a class but are still recognized by isinstance().**
 ```python
 from numbers import Integral, Rational, Real, Complex, Number
 <bool> = isinstance(<el>, Number)

index.html

@@ -308,15 +308,8 @@ Point(x=<span class="hljs-number">1</span>, y=<span class="hljs-number">2</span>
 <li><strong>Type and class are synonymous.</strong></li>
 </ul>
 <pre><code class="python language-python hljs">&lt;type&gt;  = type(&lt;el&gt;)                      <span class="hljs-comment"># Or: &lt;type&gt; = &lt;el&gt;.__class__</span>
-&lt;bool&gt;  = isinstance(&lt;el&gt;, &lt;type&gt;)        <span class="hljs-comment"># Also true if 'type' is a superclass of el's type.</span>
+&lt;bool&gt;  = isinstance(&lt;el&gt;, &lt;type&gt;)        <span class="hljs-comment"># Also checks subclasses and ABCs.</span>
 </code></pre>
-<pre><code class="python language-python hljs">&lt;tuple&gt; = &lt;type&gt;.__bases__                <span class="hljs-comment"># A tuple of type's parents.</span>
-&lt;list&gt;  = &lt;type&gt;.mro()                    <span class="hljs-comment"># Returns a list of all type's superclasses.</span>
-&lt;bool&gt;  = issubclass(&lt;sub_type&gt;, &lt;type&gt;)  <span class="hljs-comment"># Checks if 'sub_type' is a subclass of 'type'.</span>
-</code></pre>
-<ul>
-<li><strong>Every class is a subclass and a superclass of itself.</strong></li>
-</ul>
 <pre><code class="python language-python hljs"><span class="hljs-meta">&gt;&gt;&gt; </span>type(<span class="hljs-string">'a'</span>), <span class="hljs-string">'a'</span>.__class__, str
 (&lt;<span class="hljs-class"><span class="hljs-title">class</span> '<span class="hljs-title">str</span>'&gt;, &lt;<span class="hljs-title">class</span> '<span class="hljs-title">str</span>'&gt;, &lt;<span class="hljs-title">class</span> '<span class="hljs-title">str</span>'&gt;)
 </span></code></pre>
@@ -324,6 +317,7 @@ Point(x=<span class="hljs-number">1</span>, y=<span class="hljs-number">2</span>
 <pre><code class="python language-python hljs"><span class="hljs-keyword">from</span> types <span class="hljs-keyword">import</span> FunctionType, MethodType, LambdaType, GeneratorType
 </code></pre>
 <h3 id="abcs">ABC-s</h3>
+<p><strong>Abstract base classes introduce virtual subclasses, that don’t inherit from a class but are still recognized by isinstance().</strong></p>
 <pre><code class="python language-python hljs"><span class="hljs-keyword">from</span> numbers <span class="hljs-keyword">import</span> Integral, Rational, Real, Complex, Number
 &lt;bool&gt; = isinstance(&lt;el&gt;, Number)
 </code></pre>