feat: Support attributes section in Google-style docstrings

Issue #88

src/mkdocstrings/handlers/python.py

@@ -26,6 +26,11 @@ class PythonRenderer(BaseRenderer):
 
     It defines some configuration options, implements the `render` method,
     and overrides the `update_env` method of the [`BaseRenderer` class][mkdocstrings.handlers.BaseRenderer].
+
+    Attributes:
+        FALLBACK_THEME: The theme to fallback to.
+        DEFAULT_CONFIG: The default rendering options,
+            see [`DEFAULT_CONFIG`][mkdocstrings.handlers.python.PythonRenderer.DEFAULT_CONFIG].
     """
 
     FALLBACK_THEME = "material"

src/mkdocstrings/templates/python/material/attributes.html

@@ -0,0 +1,19 @@
+<p><strong>Attributes:</strong></p>
+<table>
+  <thead>
+    <tr>
+      <th>Name</th>
+      <th>Type</th>
+      <th>Description</th>
+    </tr>
+  </thead>
+  <tbody>
+    {% for attribute in attributes %}
+      <tr>
+        <td><code>{{ attribute.name }}</code></td>
+        <td><code>{{ attribute.annotation }}</code></td>
+        <td>{{ attribute.description|convert_markdown }}</td>
+      </tr>
+    {% endfor %}
+  </tbody>
+</table>

src/mkdocstrings/templates/python/material/docstring.html

@@ -2,6 +2,10 @@
   {% for section in docstring_sections %}
     {% if section.type == "markdown" %}
       {{ section.value|convert_markdown }}
+    {% elif section.type == "attributes" %}
+      {% with attributes = section.value %}
+        {% include "attributes.html" with context %}
+      {% endwith %}
     {% elif section.type == "parameters" %}
       {% with parameters = section.value %}
         {% include "parameters.html" with context %}