{"id":7647,"date":"2024-04-25T12:21:14","date_gmt":"2024-04-25T12:21:14","guid":{"rendered":"https:\/\/djangostars.com\/blog\/?p=7647"},"modified":"2025-09-11T15:58:27","modified_gmt":"2025-09-11T15:58:27","slug":"python-descriptors","status":"publish","type":"post","link":"https:\/\/djangostars.com\/blog\/python-descriptors\/","title":{"rendered":"Python Descriptors: A Complete Tutorial with Code Examples"},"content":{"rendered":"<p>If you&#8217;re new to using Python descriptors\u2014or want a refresher\u2014this short, straightforward article will help you implement and understand them, with code you can try in the <a href=\"https:\/\/djangostars.com\/blog\/python-ide\/\">most popular Python IDE<\/a> or any editor.<\/p>\n<p>Descriptors in Python are useful for managing how class attributes are accessed, modified, and deleted. They form the foundation for features like properties, class methods, and static methods.<\/p>\n<p>This article provides a solid understanding of what they are, how they work, and when and why you should use them. By the end of this Python descriptors tutorial, you will know:<\/p>\n<ul>\n<li>What Python descriptors are<\/li>\n<li>How descriptors work in Python<\/li>\n<li>When to use Python descriptors<\/li>\n<li>Code examples that you can copy and run<\/li>\n<li>Bounded Descriptors with their Usage Scenario<\/li>\n<li>How descriptors simplify API development<\/li>\n<\/ul>\n<p><div class=\"info_box_shortcode_holder\" style=\"background-image: url(https:\/\/djangostars.com\/blog\/wp-content\/uploads\/2023\/08\/Django-Development.png)\">\n    <div class=\"info_box_label\">\n    Services\n    <\/div>\n    <div class=\"info_box_logo\">\n    \n    <\/div>\n    \n    <div class=\"info_box_title font_size_\">\n   <span class=\"info_box_title_inner\">Django: The Best Quality-Value Ratio.&lt;br \/&gt;\n<\/span>\n    <\/div>\n    <div class=\"info_box_link\">\n        <a href=\"https:\/\/djangostars.com\/services\/python-django-development\/\" target=\"_blank\" >\n            <span>Learn More<\/span>\n            <div class=\"button_animated\">\n                <svg width=\"24\" height=\"12\" viewBox=\"0 0 24 12\" fill=\"none\"\n                     xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                    <path d=\"M23.725 5.33638C23.7248 5.3361 23.7245 5.33577 23.7242 5.33549L18.8256 0.460497C18.4586 0.0952939 17.865 0.096653 17.4997 0.463684C17.1345 0.830668 17.1359 1.42425 17.5028 1.7895L20.7918 5.06249H0.9375C0.419719 5.06249 0 5.48221 0 5.99999C0 6.51777 0.419719 6.93749 0.9375 6.93749H20.7917L17.5029 10.2105C17.1359 10.5757 17.1345 11.1693 17.4998 11.5363C17.865 11.9034 18.4587 11.9046 18.8256 11.5395L23.7242 6.66449C23.7245 6.66421 23.7248 6.66388 23.7251 6.6636C24.0923 6.29713 24.0911 5.70163 23.725 5.33638Z\"\n                          fill=\"#282828\"><\/path>\n                <\/svg>\n                <div class=\"shape\"><\/div>\n            <\/div>\n        <\/a>\n    <\/div>\n<\/div><br \/>\nYou&#8217;ll see how we\u00a0utilize descriptors to solve common problems in software development, with insights into bounded descriptors and their applications in frameworks like Django. For further expertise and to enhance your projects, consider <a href=\"https:\/\/djangostars.com\/get-in-touch\/\">contacting us<\/a> to hire Python programmers.<\/p>\n<h2>What Are Descriptors in Python?<\/h2>\n<p>Descriptors are tools in Python used to manage how you can access, change, or remove properties. They work through three main methods:<\/p>\n<ul>\n<li><code>__get__(self, instance, owner)<\/code>. Accesses the attribute. It returns the value<\/li>\n<li><code>__set__(self, instance, value)<\/code>. Sets the attribute. Does not return anything<\/li>\n<li><code>__delete__(self, instance)<\/code>. Deletes the attribute. Does not return anything<\/li>\n<\/ul>\n<h3>Python descriptors examples<\/h3>\n<p>A Python descriptor can implement any combination of these methods. Using these methods, you can control and customize how properties behave in your code. Uoi can add specific actions with descriptors whenever properties are accessed, changed, or deleted.<\/p>\n<p>Let\u2019s create a simple descriptor in Python that only implements <code>__get__<\/code> method. This descriptor will handle retrieving a value. Make a new file and insert this code:<\/p>\n<pre><code>class NameDescriptor:\r\n    def __get__(self, obj, objtype=None):\r\n        return \"John Doe\"\r\n\r\nclass Person:\r\n    name = NameDescriptor()\r\n\r\n# Usage\r\nperson = Person()\r\nprint(f\"Name: {person.name}\")  # Outputs \"Name: John Doe\"<\/code><\/pre>\n<p>To execute Python code, you can use the command python filename.py in your terminal or use any <a href=\"https:\/\/www.online-python.com\/\">online editor<\/a>.<\/p>\n<p>Add a <code>__set__<\/code> method to extend your descriptor&#8217;s functionality to modify the attribute value:<\/p>\n<pre><code>class NameDescriptor:\r\n    def __init__(self):\r\n        self._name = \"John Doe\"\r\n    \r\n    def __get__(self, obj, objtype=None):\r\n        return self._name\r\n    \r\n    def __set__(self, obj, value):\r\n        if isinstance(value, str):\r\n            self._name = value\r\n        else:\r\n            raise ValueError(\"Name must be a string\")\r\n\r\nclass Person:\r\n    name = NameDescriptor()\r\n\r\n# Usage\r\nperson = Person()\r\nprint(f\"Name: {person.name}\")  # Outputs \"Name: John Doe\"\r\nperson.name = \"Jane Doe\"\r\nprint(f\"Name: {person.name}\")  # Outputs \"Name: Jane Doe\"<\/code><\/pre>\n<h2>Python Descriptor Protocol<\/h2>\n<p><code>__get__<\/code> method is called to retrieve the value of an attribute. It takes two parameters besides self:<\/p>\n<ul>\n<li><code>instance<\/code>: the instance of the class from which the attribute is accessed<\/li>\n<li><code>owner<\/code>: the class that owns the attribute<\/li>\n<\/ul>\n<p>If <code>__get__<\/code> is accessed through the class, the instance will be <code>None<\/code>.<\/p>\n<pre><code>class UpperCaseAttribute:\r\n    def __init__(self, initial_value):\r\n        self.value = initial_value.upper()\r\n\r\n    def __get__(self, instance, owner):\r\n        return self.value\r\n\r\nclass Person:\r\n    name = UpperCaseAttribute('John')\r\n\r\nperson = Person()\r\nprint(person.name)  # Outputs 'JOHN'<\/code><\/pre>\n<p>In this example, the <code>UpperCaseAttribute<\/code> ensures that the string value assigned is always converted to uppercase. When the person&#8217;s name is accessed, <code>__get__<\/code> returns the uppercase version of the initial value.<\/p>\n<p><code>__set__<\/code> method is called to set the value of an attribute. It takes two parameters besides self:<\/p>\n<ul>\n<li><code>instance<\/code>: the instance of the class on which the attribute is set<\/li>\n<li><code>value<\/code>: the new value for the attribute<\/li>\n<\/ul>\n<pre><code>class ValidatedAge:\r\n    def __set__(self, instance, value):\r\n        if not isinstance(value, int) or not (0 &lt;= value &lt;= 120):\r\n            raise ValueError(\"Please enter a valid age\")\r\n        instance.__dict__['age'] = value\r\n\r\nclass Person:\r\n    age = ValidatedAge()\r\n\r\nperson = Person()\r\nperson.age = 30\r\nprint(person.age)  # Outputs 30\r\nperson.age = -5  # Raises ValueError: Please enter a valid age<\/code><\/pre>\n<p>This <code>ValidatedAge<\/code> Python class descriptor ensures that the age attribute always receives a valid integer within an acceptable range.<\/p>\n<p><code>__delete__<\/code> method is invoked when the attribute is deleted. It takes one parameter besides self:<\/p>\n<ul>\n<li><code>instance<\/code>: the instance from which the attribute is being deleted<\/li>\n<\/ul>\n<pre><code>class NonDeletableAttribute:\r\n    def __init__(self, value):\r\n        self.value = value\r\n\r\n    def __delete__(self, instance):\r\n        raise AttributeError(\"This attribute cannot be deleted\")\r\n\r\nclass Person:\r\n    name = NonDeletableAttribute('John')\r\n\r\nperson = Person()\r\ndel person.name  # Raises AttributeError: This attribute cannot be deleted<\/code><\/pre>\n<p>In this example, the <code>NonDeletableAttribute<\/code> warns the name attribute from being deleted, protecting its presence in the class instance.<\/p>\n<h2>How Descriptors in Python Work<\/h2>\n<p>Class&#8217;s Method Resolution Order (MRO) rules the process and the nature of the attributes (whether they are data descriptors or not). We&#8217;ll explore the detailed process of how Python uses descriptors and decides which attribute to use when multiple possibilities exist.<br \/>\n<div class=\"info_box_shortcode_holder\" style=\"background-image: url(https:\/\/djangostars.com\/blog\/wp-content\/uploads\/2023\/08\/Python-Development.png)\">\n    <div class=\"info_box_label\">\n    Services\n    <\/div>\n    <div class=\"info_box_logo\">\n    \n    <\/div>\n    \n    <div class=\"info_box_title font_size_\">\n   <span class=\"info_box_title_inner\">Python: Battle-tested solutions for any needs.&lt;br \/&gt;\n<\/span>\n    <\/div>\n    <div class=\"info_box_link\">\n        <a href=\"https:\/\/djangostars.com\/services\/python-development\/\" target=\"_blank\" >\n            <span>Learn More<\/span>\n            <div class=\"button_animated\">\n                <svg width=\"24\" height=\"12\" viewBox=\"0 0 24 12\" fill=\"none\"\n                     xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                    <path d=\"M23.725 5.33638C23.7248 5.3361 23.7245 5.33577 23.7242 5.33549L18.8256 0.460497C18.4586 0.0952939 17.865 0.096653 17.4997 0.463684C17.1345 0.830668 17.1359 1.42425 17.5028 1.7895L20.7918 5.06249H0.9375C0.419719 5.06249 0 5.48221 0 5.99999C0 6.51777 0.419719 6.93749 0.9375 6.93749H20.7917L17.5029 10.2105C17.1359 10.5757 17.1345 11.1693 17.4998 11.5363C17.865 11.9034 18.4587 11.9046 18.8256 11.5395L23.7242 6.66449C23.7245 6.66421 23.7248 6.66388 23.7251 6.6636C24.0923 6.29713 24.0911 5.70163 23.725 5.33638Z\"\n                          fill=\"#282828\"><\/path>\n                <\/svg>\n                <div class=\"shape\"><\/div>\n            <\/div>\n        <\/a>\n    <\/div>\n<\/div><\/p>\n<h3>How Attribute Lookup Works with Descriptors<\/h3>\n<p>When Python needs to resolve an attribute reference on an object, it follows a precise series of steps. These steps ensure the language&#8217;s behavior remains predictable and consistent.<\/p>\n<p><b>Starting with the class of the instance.<\/b> Python first identifies the instance&#8217;s class where the attribute lookup is initiated.<\/p>\n<p><b>Calling __getattribute__ method.<\/b> It\u2019s automatically called. This method is responsible for managing how attributes are accessed from instances.<\/p>\n<p><b>Scanning the MRO.<\/b> <code>__getattribute__<\/code> uses the MRO to check if the attribute exists on the current and base classes. The MRO is a list that Python creates at the time of class definition, which orders the class and its parents in a way that respects their linearization (following the C3 linearization algorithm).<\/p>\n<pre><code>def find_class_attribute(cls, name):\r\n    for c in cls.__mro__:\r\n        if name in c.__dict__:\r\n            return c.__dict__[name]<\/code><\/pre>\n<p><b>Handling Data Descriptors<\/b>. If the attribute is a data descriptor (an object defining <code>__set__<\/code> and\/or <code>__delete__<\/code>), it takes priority, and its <code>__get__<\/code> method is invoked if it exists. The lookup process stops here because data descriptors are designed to manage both setting and getting values.<\/p>\n<p><b>Checking Instance Dictionary.<\/b> If no data descriptor is found, Python checks the instance&#8217;s own <code>__dict__<\/code> (if it exists) for the attribute. If the attribute is found here, its value is used.<\/p>\n<p><b>Handling Non-Data Descriptors and Other Attributes<\/b>. If the attribute is not in the instance&#8217;s <code>__dict__<\/code>, and a non-data descriptor (only has a <code>__get__<\/code> method) or regular method is found in the class or its parents, that is used.<\/p>\n<p><b>Fallback to __getattr__<\/b>. If the attribute hasn&#8217;t been located yet, and the class defines a <code>__getattr__<\/code> method, this method is called to handle the missing attribute.<\/p>\n<p><b>Returning AttributeError.<\/b> If none of the above steps resolves the attribute, an <code>AttributeError<\/code> is returned, indicating that the attribute was not found.<\/p>\n<p>Let&#8217;s consider an example:<\/p>\n<pre><code>class A:\r\n    def __getattr__(self, name):\r\n        return f\"{name} not found in A, but handled by __getattr__\"\r\n\r\nclass B(A):\r\n    dd_1 = 123  # Regular class attribute\r\n\r\n    def __init__(self):\r\n        self.instance_attr = \"Instance attribute in B\"\r\n\r\nb = B()\r\nprint(b.dd_1)  # Directly from B's class dictionary\r\nprint(b.instance_attr)  # From instance dictionary of b\r\nprint(b.some_random_attr)  # Handled by __getattr__ of class A<\/code><\/pre>\n<p>In this example:<\/p>\n<ul>\n<li><code>dd_1<\/code> is found directly in B&#8217;s class dictionary.<\/li>\n<li><code>instance_attr<\/code> is found in the instance dictionary of b.<\/li>\n<li><code>some_random_attr<\/code> is not found in either B&#8217;s class dictionary or b&#8217;s instance dictionary, so it triggers A&#8217;s <code>__getattr__<\/code> method.<\/li>\n<\/ul>\n<p>Here\u2019s a simple flow diagram to visualize the process:<\/p>\n<pre><code>\r\n   +----------------+\r\n   | Attribute Call |\r\n   +----------------+\r\n           |\r\n           V\r\n   +------------------------------+\r\n   | __getattribute__ Method Call |\r\n   +------------------------------+\r\n           |\r\n           V\r\n   +------------------------+\r\n   | Scan MRO for Attribute |\r\n   +------------------------+\r\n           |\r\n           V\r\n   +---------------------------+\r\n   | Check for Data Descriptor |\r\n   +---------------------------+\r\n           |\r\n           |-------------------------+\r\n           |                         |\r\n   Yes     V                         | No\r\n   +---------------------+   +-------------------------+\r\n   | Execute __get__ of  |   | Check Instance __dict__ |\r\n   | Data Descriptor     |   +-------------------------+\r\n   +---------------------+           |\r\n           |                         |\r\n           |                         V\r\n   +---------------------+   +----------------------+\r\n   | Return Value from   |   | Check for Non-data   |\r\n   | Data Descriptor     |   | Descriptor or Method |\r\n   +---------------------+   +----------------------+\r\n           |                         |\r\n           |-------------------------+\r\n           |                         |\r\n           |                         V\r\n           |                 +---------------------+\r\n           |                 | Execute __get__ of  |\r\n           |                 | Non-data Descriptor |\r\n           |                 +---------------------+\r\n           |                         |\r\n           |                         V\r\n           |                 +---------------------+\r\n           |                 | Return Value from   |\r\n           |                 | Non-data Descriptor |\r\n           |                 +---------------------+\r\n           |                         |\r\n           V                         V\r\n   +---------------------+   +---------------------+\r\n   | End of Attribute    |   | If Attribute not    |\r\n   | Lookup with Value   |   | Found, Check for    |\r\n   +---------------------+   | __getattr__         |\r\n                             +---------------------+\r\n                                     |\r\n                                     V\r\n                             +---------------------+\r\n                             | Execute __getattr__ |\r\n                             +---------------------+\r\n                                     |\r\n                                     V\r\n                             +---------------------+\r\n                             | Return Value from   |\r\n                             | __getattr__         |\r\n                             +---------------------+\r\n                                     |\r\n                                     V\r\n                             +----------------------+\r\n                             | AttributeError |\r\n                             | if __getattr__ is    |\r\n                             | not defined          |\r\n                             +----------------------+\r\n<\/code><\/pre>\n<h2>When Python Descriptors are Needed<\/h2>\n<p>Descriptors can enhance the design and functionality of your software. Below are a few scenarios where using Python descriptors can be beneficial.<br \/>\n<div class=\"info_box_shortcode_holder\" style=\"background-image: url(https:\/\/djangostars.com\/blog\/wp-content\/uploads\/2023\/08\/Web-Development_2.png)\">\n    <div class=\"info_box_label\">\n    Services\n    <\/div>\n    <div class=\"info_box_logo\">\n    \n    <\/div>\n    \n    <div class=\"info_box_title font_size_\">\n   <span class=\"info_box_title_inner\">Elevate your web development.&lt;br \/&gt;\n<\/span>\n    <\/div>\n    <div class=\"info_box_link\">\n        <a href=\"https:\/\/djangostars.com\/services\/web-development\/\" target=\"_blank\" >\n            <span>Learn More<\/span>\n            <div class=\"button_animated\">\n                <svg width=\"24\" height=\"12\" viewBox=\"0 0 24 12\" fill=\"none\"\n                     xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                    <path d=\"M23.725 5.33638C23.7248 5.3361 23.7245 5.33577 23.7242 5.33549L18.8256 0.460497C18.4586 0.0952939 17.865 0.096653 17.4997 0.463684C17.1345 0.830668 17.1359 1.42425 17.5028 1.7895L20.7918 5.06249H0.9375C0.419719 5.06249 0 5.48221 0 5.99999C0 6.51777 0.419719 6.93749 0.9375 6.93749H20.7917L17.5029 10.2105C17.1359 10.5757 17.1345 11.1693 17.4998 11.5363C17.865 11.9034 18.4587 11.9046 18.8256 11.5395L23.7242 6.66449C23.7245 6.66421 23.7248 6.66388 23.7251 6.6636C24.0923 6.29713 24.0911 5.70163 23.725 5.33638Z\"\n                          fill=\"#282828\"><\/path>\n                <\/svg>\n                <div class=\"shape\"><\/div>\n            <\/div>\n        <\/a>\n    <\/div>\n<\/div><\/p>\n<h3>Managing Shared Attributes Across Instances<\/h3>\n<p>When you want a consistent method for accessing or setting values that need to be shared or behave the same way across different instances of a class, descriptors provide a good solution. They encapsulate the logic for attribute access in a single place, so that all interactions with a given property follow predefined rules.<\/p>\n<p><b>Example Without Descriptors:<\/b><\/p>\n<pre><code>class Account:\r\n    def __init__(self, name, balance):\r\n        self.name = name\r\n        self._balance = balance\r\n\r\n    @property\r\n    def balance(self):\r\n        return self._balance\r\n\r\n    @balance.setter\r\n    def balance(self, value):\r\n        if value &lt; 0:\r\n            raise ValueError(\"Balance cannot be negative\")\r\n        self._balance = value\r\n\r\n# Every instance needs to replicate validation logic, which is inefficient and error-prone.<\/code><\/pre>\n<p><b>Example With Descriptors:<\/b><\/p>\n<pre><code>class BalanceDescriptor:\r\n    def __init__(self, balance):\r\n        self._balance = balance\r\n\r\n    def __get__(self, instance, owner):\r\n        return self._balance\r\n\r\n    def __set__(self, instance, value):\r\n        if value &lt; 0:\r\n            raise ValueError(\"Balance cannot be negative\")\r\n        self._balance = value\r\n\r\nclass Account:\r\n    balance = BalanceDescriptor(0)\r\n\r\n# The descriptor handles the logic, improving maintainability and consistency.<\/code><\/pre>\n<p>In this case, a descriptor simplifies the management of the balance attribute by centralizing the validation logic. It enhances code reusability and consistency across different parts of the application.<\/p>\n<h3>Lazy Property Evaluation<\/h3>\n<p>Descriptors are good for implementing lazy properties where the value is hard to compute and should only be done when needed. This improves efficiency and saves resources.<\/p>\n<p><b>Example Without Descriptors:<\/b><\/p>\n<pre><code>class DataAnalysis:\r\n    def __init__(self, data):\r\n        self.data = data\r\n        self._result = self._analyze_data()\r\n\r\n    def _analyze_data(self):\r\n        # Simulate a time-consuming analysis\r\n        return sum(self.data) \/ len(self.data)\r\n\r\n# The result is computed at instantiation, regardless of whether it is used.<\/code><\/pre>\n<p><b>Example With Descriptors:<\/b><\/p>\n<pre><code>class LazyProperty:\r\n    def __init__(self, function):\r\n        self.function = function\r\n        self.attribute_name = f\"_{function.__name__}\"\r\n\r\n    def __get__(self, obj, objtype=None):\r\n        if not hasattr(obj, self.attribute_name):\r\n            setattr(obj, self.attribute_name, self.function(obj))\r\n        return getattr(obj, self.attribute_name)\r\n\r\nclass DataAnalysis:\r\n    def __init__(self, data):\r\n        self.data = data\r\n\r\n    @LazyProperty\r\n    def result(self):\r\n        # Simulate a time-consuming analysis\r\n        return sum(self.data) \/ len(self.data)\r\n\r\nanalysis = DataAnalysis([10, 20, 30, 40])\r\nprint(analysis.result)  # The result property is accessed, triggering the computation\r\nprint(analysis.result)  # The result property is accessed again, but this time it returns the cached value without recomputation<\/code><\/pre>\n<h3>Enforcing Type and Value Constraints<\/h3>\n<p>When attributes need to meet specific type or value constraints, descriptors make it easy to enforce these requirements.<\/p>\n<p><b>Example With Descriptors:<\/b><\/p>\n<pre><code>class TypeChecked:\r\n    def __init__(self, expected_type, attribute_name):\r\n        self.expected_type = expected_type\r\n        self.attribute_name = attribute_name\r\n\r\n    def __set__(self, obj, value):\r\n        if not isinstance(value, self.expected_type):\r\n            raise TypeError(f\"{self.attribute_name} must be of type {self.expected_type}\")\r\n        obj.__dict__[self.attribute_name] = value\r\n\r\nclass Person:\r\n    name = TypeChecked(str, 'name')\r\n    age = TypeChecked(int, 'age')\r\n\r\n# Attributes are guaranteed to have correct types, reducing bugs.<\/code><\/pre>\n<p><b>What You Lose Without Descriptors:<\/b><\/p>\n<p>If you choose not to use descriptors, you may see several issues:<\/p>\n<ul>\n<li>Code Duplication. Each class must independently implement and maintain its own logic for handling properties.<\/li>\n<li>Increased Risk of Errors. Inconsistencies in handling properties can lead to bugs, especially in larger applications with many developers.<\/li>\n<li>Performance Inefficiencies. Without lazy evaluation or caching, applications may perform unnecessary calculations and consume more resources than needed.<\/li>\n<\/ul>\n<h2>How The Django Stars Developers Use Descriptors<\/h2>\n<p>At Django Stars company, we have adopted Python descriptors to streamline and enhance various aspects of our projects. Here, I offer an insider look at how our engineers apply descriptors tips and best Python web development practices.<\/p>\n<h3>The Concept of Bounded Descriptors<\/h3>\n<p>One use of descriptors within our development team is &#8220;bounded descriptors.&#8221; Typically, a descriptor doesn&#8217;t maintain a reference to any specific instance. There&#8217;s only one descriptor instance per class that is shared among all instances of that class.<\/p>\n<p>This is memory-efficient as it avoids needing separate descriptor instances for each class instance. However, sometimes a descriptor must interact with a specific instance, especially when extending or customizing behavior at the instance level without using inheritance.<\/p>\n<p>Here\u2019s an example of bounded descriptors:<\/p>\n<pre><code>class BoundableDescriptor:\r\n    def __init__(self, **kwargs):\r\n        self._kwargs = kwargs\r\n        self.instance = None\r\n\r\n    def __set_name__(self, owner, name):\r\n        self.name = name\r\n\r\n    def __get__(self, instance, owner):\r\n        if instance is None:\r\n            return self\r\n        if self.name not in instance.__dict__:\r\n            bounded_descriptor = type(self)(**self._kwargs)\r\n            bounded_descriptor.set_instance(instance)\r\n            instance.__dict__[self.name] = bounded_descriptor\r\n        return instance.__dict__[self.name]\r\n\r\n    def set_instance(self, instance):\r\n        self.instance = instance\r\n\r\n    def __repr__(self):\r\n        if self.instance is not None:\r\n            return f\"&lt;{self.__class__.__name__} object at {id(self)}&gt; bounded to {self.instance}\"\r\n        return f\"&lt;{self.__class__.__name__} object at {id(self)}&gt;\"<\/code><\/pre>\n<p>Usage Scenario:<\/p>\n<pre><code>class Example:\r\n descriptor = BoundableDescriptor()\r\n\r\nprint(Example.descriptor)\r\nexample1 = Example()\r\nprint(example1.descriptor)<\/code><\/pre>\n<p>Output:<\/p>\n<pre><code>&lt;BoundableDescriptor object at 127062133300128&gt;<\/code> <code>&lt;BoundableDescriptor object at 127062133300272&gt; bounded to &lt;__main__.Example object at 0x738ff551dae0&gt;<\/code><\/pre>\n<p>This method of using bounded descriptors allows each instance to have a personalized version of the descriptor, which can maintain an instance-specific state.<\/p>\n<h3>Simplifying API Development<\/h3>\n<p>We can see it in our approach to extending functionalities of frameworks or third-party libraries without complex inheritance hierarchies, particularly within the context of the Django REST framework.<\/p>\n<p>Example:<\/p>\n<pre><code>from rest_framework.generics import CreateAPIView\r\nfrom rest_framework import serializers\r\nfrom rest_framework.response import Response\r\n\r\nclass CreateEndpoint(BoundableDescriptor):\r\n    def __call__(self, request, *args, **kwargs):\r\n        serializer = self.input_serializer(data=request.data)\r\n        serializer.is_valid(raise_exception=True)\r\n        self.perform_create(serializer)\r\n        headers = self.instance.get_success_headers(serializer.data)\r\n        output_serializer = self.output_serializer(serializer.instance)\r\n        return Response(\r\n            output_serializer.data,\r\n            status=201,\r\n            headers=headers,\r\n        )\r\n\r\nclass YourCreateApiView(CreateAPIView):\r\n    create = CreateEndpoint(input_serializer=InputSerializer, output_serializer=OutputSerializer)\r\n    \r\nclass YourOtherCreateApiView(CreateAPIView):\r\n    create = CreateEndpoint(input_serializer=OtherInputSerializer, output_serializer=OtherOutputSerializer)<\/code><\/pre>\n<p><code>CreateEndpoint<\/code> descriptor replaces the typical create method of a Django view class. This setup allows developers to define the behavior once and then apply it to different views as needed without repeating code or creating a complex inheritance tree.<\/p>\n<p>This approach using bounded descriptors simplifies the code and promotes reusability and modularity. The bounded descriptor has a direct reference to the view&#8217;s instance. Thus, it can access instance-specific data and methods, making it a nice tool for customizing behavior on a per-instance basis.<\/p>\n<p>Benefits:<\/p>\n<ul>\n<li>Flexibility. Easily adapt and extend the behavior of classes without modifying the original classes.<\/li>\n<li>Reusability. Define behavior once and apply it across multiple classes.<\/li>\n<li>Memory Efficiency. Maintain a single instance of the descriptor for shared behavior, with instance-specific customization when needed.<\/li>\n<\/ul>\n<p>Through these techniques and best practices, Django Stars developers have found descriptors valuable for creating cleaner, more maintainable, and scalable code in various Python applications.<\/p>\n<h2>Conclusion<\/h2>\n<p>Python descriptors help you manage object attributes with custom behavior by providing a robust, low-level descriptor protocol in Python for attribute access.<\/p>\n<p>Descriptors can enhance code efficiency and maintainability, leading to cleaner and more robust code.<\/p>\n<p>With our <a href=\"https:\/\/djangostars.com\/services\/python-development\/\">Python development\u00a0services<\/a>, \u2014and for teams asking <a href=\"https:\/\/djangostars.com\/blog\/what-is-docker-and-how-to-use-it-with-python\/\">what is docker in Python<\/a>, we\u2019ll also guide you through containerizing and deploying your apps so you can take your skills to the next level.<div class=\"lead-form-wrapper lets_disqus\">\n    <div class=\"lead-form transparent-footer\">\n        <p class=\"discuss-title paragraph-discuss col-md-12\">Have an idea? Let&#039;s discuss!<\/p>\n\n        \n<div class=\"wpcf7 no-js\" id=\"wpcf7-f2589-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"2589\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/blog\/wp-json\/wp\/v2\/posts\/7647#wpcf7-f2589-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" enctype=\"multipart\/form-data\" novalidate=\"novalidate\" data-status=\"init\">\n<div style=\"display: none;\">\n<input type=\"hidden\" name=\"_wpcf7\" value=\"2589\" \/>\n<input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.0.6\" \/>\n<input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/>\n<input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f2589-o1\" \/>\n<input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/>\n<input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<input type=\"hidden\" name=\"form_start_time\" value=\"1777009475\" \/>\n<input type=\"hidden\" name=\"_wpcf7_recaptcha_response\" value=\"\" \/>\n<\/div>\n<div class=\"form_holder\">\n    <div class=\"input_section input_row\">\n        <div class=\"input_holder\">\n                            <span class=\"input_label\">\n                               Your name *\n                            <\/span>\n            <input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" id=\"your-name\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"text-898\" \/>\n\n            <input class=\"wpcf7-form-control wpcf7-hidden\" id=\"uniq_ga_id\" value=\"\" type=\"hidden\" name=\"uniq_ga_id\" \/>\n        <\/div>\n        <div class=\"input_holder\">\n                            <span class=\"input_label\">\n                                Your email *\n                            <\/span>\n            <input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" id=\"your-email\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"email\" name=\"email-882\" \/>\n        <\/div>\n    <\/div>\n    <div class=\"input_section single_input_row\">\n        <div class=\"input_holder\">\n            <span class=\"input_label\">How can we help you? *<\/span>\n            <input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" id=\"message\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"message\" \/>\n        <\/div>\n    <\/div>\n    <div class=\"file_attach\">\n        <input size=\"40\" class=\"wpcf7-form-control wpcf7-file\" accept=\"audio\/*,video\/*,image\/*\" aria-invalid=\"false\" type=\"file\" name=\"file-930\" \/>\n        <div class=\"file_placeholder\">\ud83d\udcce <span>Attach File<\/span>\n            <span class=\"file_formats\">Formats: pdf, doc, docx, rtf, ppt, pptx.<\/span><\/div>\n    <\/div>\n    <div class=\"checkbox_row\">\n        <div class=\"single_checkbox\"><div class=\"checkbox_indicator\"><div class=\"checked_indicator\"><svg width=\"14\" height=\"12\" viewBox=\"0 0 14 12\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M4.66804 12L0 7.26951L1.22426 6.05269L4.54927 9.40456L12.6737 0L14 1.10613L4.66804 12Z\" fill=\"#1E232C\"\/><\/svg><\/div><\/div><input type=\"checkbox\" name=\"agree\" id=\"privacy\" value=\"agree privacy\"><label for=\"privacy\" class=\"\">I have read and accepted <a href=\"https:\/\/djangostars.com\/privacy-policy\/\" style=\"margin-left: 6px;\"> Privacy Policy*<\/a><\/label><\/div>\n        <div class=\"single_checkbox\"><div class=\"checkbox_indicator\"><div class=\"checked_indicator\"><svg width=\"14\" height=\"12\" viewBox=\"0 0 14 12\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M4.66804 12L0 7.26951L1.22426 6.05269L4.54927 9.40456L12.6737 0L14 1.10613L4.66804 12Z\" fill=\"#1E232C\"\/><\/svg><\/div><\/div><input type=\"checkbox\" name=\"agree\" id=\"marketing\" value=\"agree for marketing\"><label for=\"marketing\" class=\"\">I agree to receive marketing content from Django Stars<\/label><\/div>\n    <\/div>\n    <div class=\"submit\"><button type=\"submit\"><span>send message<\/span><\/button><div class=\"safeguard\">We safeguard your privacy<\/div><\/div>\n<\/div>\n<div style=\"position: absolute; left: -5000px;\" aria-hidden=\"true\">\n    <input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"website_url\" \/>\n<\/div><script type='text\/javascript'>\n\n\t\t\t\t\t\tif(contactform === undefined){\n\t\t\t\t\t\t\tvar contactform = [];\n\t\t\t\t\t\t}\n\t\t\t\t\t\tvar innerVal = [2589,'mail_sent_ok','Thank you for your message. It has been sent.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'mail_sent_ng','There was an error trying to send your message. Please try again later.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'validation_error','One or more fields have an error. Please check and try again.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'spam','There was an error trying to send your message. Please try again later.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'accept_terms','You must accept the terms and conditions before sending your message.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'invalid_required','The field is required.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'invalid_too_long','The field is too long.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'invalid_too_short','The field is too short.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'upload_failed','There was an unknown error uploading the file.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'upload_file_type_invalid','You are not allowed to upload files of this type.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'upload_file_too_large','The file is too big.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'upload_failed_php_error','There was an error uploading the file.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'invalid_date','The date format is incorrect.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'date_too_early','The date is before the earliest one allowed.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'date_too_late','The date is after the latest one allowed.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'invalid_number','The number format is invalid.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'number_too_small','The number is smaller than the minimum allowed.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'number_too_large','The number is larger than the maximum allowed.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'quiz_answer_not_correct','The answer to the quiz is incorrect.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'invalid_email','The e-mail address entered is invalid.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'invalid_url','The URL is invalid.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'invalid_tel','The telephone number is invalid.'];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\tvar innerVal = [2589,'gdpr',''];\n\t\t\t\t\t\tcontactform.push(innerVal);\n\t\t\t\t\t\t<\/script><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n    <\/div>\n\n    <div class=\"success_disqus\">\n        Thank you for your message.\n        <span>We\u2019ll contact you shortly<\/span>.\n    <\/div>\n<\/div>\n\n<script>\n    \/\/ (function ($) {\n    function click_input() {\n        jQuery('.file_placeholder').on('click', function () {\n            jQuery(this).parent().find('input').click();\n        })\n    }\n\n    document.addEventListener(\"DOMContentLoaded\", click_input);\n\n    \/\/ })(jQuery)\n<\/script>\n\n\n<div class=\"dj-main-article-faq\" style=\"padding-top: 0px;\">\n\t\t<div class=\"dj-main-article-faq-title\">\n\t\tFrequently Asked Questions\n\t\t<\/div>\n\t\t<div class=\"dj-main-article-faq-items\">\n\t\t\t<div class=\"dj-main-article-faq-accordeon accordeon\"><dl>\n\t\t\t\t<dt>How Can Python Descriptors Enhance Our Software Development Lifecycle? \n\t\t\t\t<div class=\"cross\">\n\t\t\t\t<span><\/span>\n\t\t\t\t<span><\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<\/dt>\n\t\t\t\t<dd>Descriptors streamline attribute management, promoting code consistency and reducing errors. This leads to smoother development, stable products, and timely project completions.<\/dd>\n\t\t\t<\/dl><dl>\n\t\t\t\t<dt>What Are the Cost Benefits of Using Python Descriptors in Large-Scale Projects? \n\t\t\t\t<div class=\"cross\">\n\t\t\t\t<span><\/span>\n\t\t\t\t<span><\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<\/dt>\n\t\t\t\t<dd>Descriptors centralize attribute behavior control, reducing redundancy and errors, which cuts development and maintenance costs across extensive codebases.<\/dd>\n\t\t\t<\/dl><dl>\n\t\t\t\t<dt>Can Python Descriptors Help in Improving the Performance of Our Applications? \n\t\t\t\t<div class=\"cross\">\n\t\t\t\t<span><\/span>\n\t\t\t\t<span><\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<\/dt>\n\t\t\t\t<dd>Yes, descriptors improve application performance by enabling efficient data loading and caching, which is especially beneficial in high-loaded systems.<\/dd>\n\t\t\t<\/dl><dl>\n\t\t\t\t<dt>How Do Python Descriptors Contribute to Data Security and Integrity in Our Applications? \n\t\t\t\t<div class=\"cross\">\n\t\t\t\t<span><\/span>\n\t\t\t\t<span><\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<\/dt>\n\t\t\t\t<dd>Descriptors enforce strict validation and type checks before data assignment, enhancing security, preventing vulnerability, and maintaining data integrity.<\/dd>\n\t\t\t<\/dl><dl>\n\t\t\t\t<dt>What Support Do You Provide for Teams New to Implementing Python Descriptors? \n\t\t\t\t<div class=\"cross\">\n\t\t\t\t<span><\/span>\n\t\t\t\t<span><\/span>\n\t\t\t\t<\/div>\n\t\t\t\t<\/dt>\n\t\t\t\t<dd>We offer detailed documentation, best practices of coding and debugging, training sessions, and expert consultations to use descriptors effectively.<\/dd>\n\t\t\t<\/dl><\/div>\n\t\t\t<\/div>\n\t\t<\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you&#8217;re new to using Python descriptors\u2014or want a refresher\u2014this short, straightforward article will help you implement and understand them, with code you can try in the most popular Python IDE or any editor. Descriptors in Python are useful for managing how class attributes are accessed, modified, and deleted. They form the foundation for features [&hellip;]<\/p>\n","protected":false},"author":50,"featured_media":7652,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[68,44],"tags":[],"class_list":["post-7647","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python-engineering","category-python-django"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Software Development Blog &amp; IT Tech Insights | Django Stars<\/title>\n<meta name=\"description\" content=\"Unlock the power of Python descriptors with our comprehensive tutorial. Learn how they work in Django and see practical examples.\" \/>\n<link rel=\"canonical\" href=\"https:\/\/djangostars.com\/blog\/wp-json\/wp\/v2\/posts\/7647\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python Descriptors: What Is It, How to Use &amp; Example | Django Stars\" \/>\n<meta property=\"og:description\" content=\"Unlock the power of Python descriptors with our comprehensive tutorial. Learn how they work in Django and see practical examples.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/djangostars.com\/blog\/python-descriptors\/\" \/>\n<meta property=\"og:site_name\" content=\"Software Development Blog &amp; IT Tech Insights | Django Stars\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/djangostars\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-04-25T12:21:14+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-11T15:58:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/djangostars.com\/blog\/wp-content\/uploads\/2024\/04\/Python-Descriptors-A-Complete-Tutorial-with-Code-Examples-cover.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1440\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Oleksandr Zaiets\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@djangostars\" \/>\n<meta name=\"twitter:site\" content=\"@djangostars\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Oleksandr Zaiets\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/djangostars.com\/blog\/python-descriptors\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/djangostars.com\/blog\/python-descriptors\/\"},\"author\":{\"name\":\"Oleksandr Zaiets\",\"@id\":\"https:\/\/djangostars.com\/blog\/#\/schema\/person\/8c8198344a4511fd23693b33b83a5e11\"},\"headline\":\"Python Descriptors: A Complete Tutorial with Code Examples\",\"datePublished\":\"2024-04-25T12:21:14+00:00\",\"dateModified\":\"2025-09-11T15:58:27+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/djangostars.com\/blog\/python-descriptors\/\"},\"wordCount\":1625,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/djangostars.com\/blog\/python-descriptors\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/djangostars.com\/blog\/wp-content\/uploads\/2024\/04\/Python-Descriptors-A-Complete-Tutorial-with-Code-Examples-cover.jpg\",\"articleSection\":[\"Expert Python \ud83d\udc0d Engineering &amp; Software Dev &amp; Tech Insights\",\"Python &amp; Django\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/djangostars.com\/blog\/python-descriptors\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/djangostars.com\/blog\/python-descriptors\/\",\"url\":\"https:\/\/djangostars.com\/blog\/python-descriptors\/\",\"name\":\"Python Descriptors: What Is It, How to Use & Example | Django Stars\",\"isPartOf\":{\"@id\":\"https:\/\/djangostars.com\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/djangostars.com\/blog\/python-descriptors\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/djangostars.com\/blog\/python-descriptors\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/djangostars.com\/blog\/wp-content\/uploads\/2024\/04\/Python-Descriptors-A-Complete-Tutorial-with-Code-Examples-cover.jpg\",\"datePublished\":\"2024-04-25T12:21:14+00:00\",\"dateModified\":\"2025-09-11T15:58:27+00:00\",\"author\":{\"@id\":\"https:\/\/djangostars.com\/blog\/#\/schema\/person\/8c8198344a4511fd23693b33b83a5e11\"},\"description\":\"Unlock the power of Python descriptors with our comprehensive tutorial. Learn how they work in Django and see practical examples.\",\"breadcrumb\":{\"@id\":\"https:\/\/djangostars.com\/blog\/python-descriptors\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/djangostars.com\/blog\/python-descriptors\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/djangostars.com\/blog\/python-descriptors\/#primaryimage\",\"url\":\"https:\/\/djangostars.com\/blog\/wp-content\/uploads\/2024\/04\/Python-Descriptors-A-Complete-Tutorial-with-Code-Examples-cover.jpg\",\"contentUrl\":\"https:\/\/djangostars.com\/blog\/wp-content\/uploads\/2024\/04\/Python-Descriptors-A-Complete-Tutorial-with-Code-Examples-cover.jpg\",\"width\":1440,\"height\":720,\"caption\":\"Python Descriptors, A Complete Tutorial with Code Examples, cover\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/djangostars.com\/blog\/python-descriptors\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/djangostars.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Python Descriptors: A Complete Tutorial with Code Examples\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/djangostars.com\/blog\/#website\",\"url\":\"https:\/\/djangostars.com\/blog\/\",\"name\":\"Software Development Blog &amp; IT Tech Insights | Django Stars\",\"description\":\"Welcome behind the scenes of software product development. We share our best practices, tech solutions, management tips, and every useful insight we\u2018ve got while working on our projects.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/djangostars.com\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/djangostars.com\/blog\/#\/schema\/person\/8c8198344a4511fd23693b33b83a5e11\",\"name\":\"Oleksandr Zaiets\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/djangostars.com\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/a77d22258b6e96a8836cfc59705b767522d7b4d2d41cade9b165b46d0ab71b29?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/a77d22258b6e96a8836cfc59705b767522d7b4d2d41cade9b165b46d0ab71b29?s=96&d=mm&r=g\",\"caption\":\"Oleksandr Zaiets\"},\"sameAs\":[\"https:\/\/hackernoon.com\/u\/regquerlyvalueex\",\"https:\/\/www.linkedin.com\/in\/olexandr-zaiets-3230a47b\/\"],\"url\":\"https:\/\/djangostars.com\/blog\/author\/oleksandr-zaiets\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Software Development Blog &amp; IT Tech Insights | Django Stars","description":"Unlock the power of Python descriptors with our comprehensive tutorial. Learn how they work in Django and see practical examples.","canonical":"https:\/\/djangostars.com\/blog\/wp-json\/wp\/v2\/posts\/7647","og_locale":"en_US","og_type":"article","og_title":"Python Descriptors: What Is It, How to Use & Example | Django Stars","og_description":"Unlock the power of Python descriptors with our comprehensive tutorial. Learn how they work in Django and see practical examples.","og_url":"https:\/\/djangostars.com\/blog\/python-descriptors\/","og_site_name":"Software Development Blog &amp; IT Tech Insights | Django Stars","article_publisher":"https:\/\/www.facebook.com\/djangostars\/","article_published_time":"2024-04-25T12:21:14+00:00","article_modified_time":"2025-09-11T15:58:27+00:00","og_image":[{"width":1440,"height":720,"url":"https:\/\/djangostars.com\/blog\/wp-content\/uploads\/2024\/04\/Python-Descriptors-A-Complete-Tutorial-with-Code-Examples-cover.jpg","type":"image\/jpeg"}],"author":"Oleksandr Zaiets","twitter_card":"summary_large_image","twitter_creator":"@djangostars","twitter_site":"@djangostars","twitter_misc":{"Written by":"Oleksandr Zaiets","Est. reading time":"8 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/djangostars.com\/blog\/python-descriptors\/#article","isPartOf":{"@id":"https:\/\/djangostars.com\/blog\/python-descriptors\/"},"author":{"name":"Oleksandr Zaiets","@id":"https:\/\/djangostars.com\/blog\/#\/schema\/person\/8c8198344a4511fd23693b33b83a5e11"},"headline":"Python Descriptors: A Complete Tutorial with Code Examples","datePublished":"2024-04-25T12:21:14+00:00","dateModified":"2025-09-11T15:58:27+00:00","mainEntityOfPage":{"@id":"https:\/\/djangostars.com\/blog\/python-descriptors\/"},"wordCount":1625,"commentCount":0,"image":{"@id":"https:\/\/djangostars.com\/blog\/python-descriptors\/#primaryimage"},"thumbnailUrl":"https:\/\/djangostars.com\/blog\/wp-content\/uploads\/2024\/04\/Python-Descriptors-A-Complete-Tutorial-with-Code-Examples-cover.jpg","articleSection":["Expert Python \ud83d\udc0d Engineering &amp; Software Dev &amp; Tech Insights","Python &amp; Django"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/djangostars.com\/blog\/python-descriptors\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/djangostars.com\/blog\/python-descriptors\/","url":"https:\/\/djangostars.com\/blog\/python-descriptors\/","name":"Python Descriptors: What Is It, How to Use & Example | Django Stars","isPartOf":{"@id":"https:\/\/djangostars.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/djangostars.com\/blog\/python-descriptors\/#primaryimage"},"image":{"@id":"https:\/\/djangostars.com\/blog\/python-descriptors\/#primaryimage"},"thumbnailUrl":"https:\/\/djangostars.com\/blog\/wp-content\/uploads\/2024\/04\/Python-Descriptors-A-Complete-Tutorial-with-Code-Examples-cover.jpg","datePublished":"2024-04-25T12:21:14+00:00","dateModified":"2025-09-11T15:58:27+00:00","author":{"@id":"https:\/\/djangostars.com\/blog\/#\/schema\/person\/8c8198344a4511fd23693b33b83a5e11"},"description":"Unlock the power of Python descriptors with our comprehensive tutorial. Learn how they work in Django and see practical examples.","breadcrumb":{"@id":"https:\/\/djangostars.com\/blog\/python-descriptors\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/djangostars.com\/blog\/python-descriptors\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/djangostars.com\/blog\/python-descriptors\/#primaryimage","url":"https:\/\/djangostars.com\/blog\/wp-content\/uploads\/2024\/04\/Python-Descriptors-A-Complete-Tutorial-with-Code-Examples-cover.jpg","contentUrl":"https:\/\/djangostars.com\/blog\/wp-content\/uploads\/2024\/04\/Python-Descriptors-A-Complete-Tutorial-with-Code-Examples-cover.jpg","width":1440,"height":720,"caption":"Python Descriptors, A Complete Tutorial with Code Examples, cover"},{"@type":"BreadcrumbList","@id":"https:\/\/djangostars.com\/blog\/python-descriptors\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/djangostars.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Python Descriptors: A Complete Tutorial with Code Examples"}]},{"@type":"WebSite","@id":"https:\/\/djangostars.com\/blog\/#website","url":"https:\/\/djangostars.com\/blog\/","name":"Software Development Blog &amp; IT Tech Insights | Django Stars","description":"Welcome behind the scenes of software product development. We share our best practices, tech solutions, management tips, and every useful insight we\u2018ve got while working on our projects.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/djangostars.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/djangostars.com\/blog\/#\/schema\/person\/8c8198344a4511fd23693b33b83a5e11","name":"Oleksandr Zaiets","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/djangostars.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/a77d22258b6e96a8836cfc59705b767522d7b4d2d41cade9b165b46d0ab71b29?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/a77d22258b6e96a8836cfc59705b767522d7b4d2d41cade9b165b46d0ab71b29?s=96&d=mm&r=g","caption":"Oleksandr Zaiets"},"sameAs":["https:\/\/hackernoon.com\/u\/regquerlyvalueex","https:\/\/www.linkedin.com\/in\/olexandr-zaiets-3230a47b\/"],"url":"https:\/\/djangostars.com\/blog\/author\/oleksandr-zaiets\/"}]}},"_links":{"self":[{"href":"https:\/\/djangostars.com\/blog\/wp-json\/wp\/v2\/posts\/7647","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/djangostars.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/djangostars.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/djangostars.com\/blog\/wp-json\/wp\/v2\/users\/50"}],"replies":[{"embeddable":true,"href":"https:\/\/djangostars.com\/blog\/wp-json\/wp\/v2\/comments?post=7647"}],"version-history":[{"count":9,"href":"https:\/\/djangostars.com\/blog\/wp-json\/wp\/v2\/posts\/7647\/revisions"}],"predecessor-version":[{"id":9670,"href":"https:\/\/djangostars.com\/blog\/wp-json\/wp\/v2\/posts\/7647\/revisions\/9670"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/djangostars.com\/blog\/wp-json\/wp\/v2\/media\/7652"}],"wp:attachment":[{"href":"https:\/\/djangostars.com\/blog\/wp-json\/wp\/v2\/media?parent=7647"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/djangostars.com\/blog\/wp-json\/wp\/v2\/categories?post=7647"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/djangostars.com\/blog\/wp-json\/wp\/v2\/tags?post=7647"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}