Python Developer

Immutable Objects : These are of in-built types like int, float, bool, string, unicode, tuple. In simple words, an immutable object can’t be changed after it is created.
Mutable Objects : These are of type list, dict, set . Custom classes are generally mutable.
To summarise the difference, mutable objects can change their state or contents and immutable objects can’t change their state or content.

SOAP stands for Simple Object Access Protocol whereas REST stands for Representational State Transfer.
SOAP is a protocol whereas REST is an architectural pattern.
SOAP uses service interfaces to expose its functionality to client applications while REST uses Uniform Service locators to access to the components on the hardware device.
SOAP needs more bandwidth for its usage whereas REST doesn’t need much bandwidth.
Comparing SOAP vs REST API, SOAP only works with XML formats whereas REST work with plain text, XML, HTML and JSON.
SOAP cannot make use of REST whereas REST can make use of SOAP.

Method overriding is an ability of any object-oriented programming language that allows a subclass or child class to provide a specific implementation of a method that is already provided by one of its super-classes or parent classes. When a method in a subclass has the same name, same parameters or signature and same return type(or sub-type) as a method in its super-class, then the method in the subclass is said to override the method in the super-class.
The version of a method that is executed will be determined by the object that is used to invoke it. If an object of a parent class is used to invoke the method, then the version in the parent class will be executed, but if an object of the subclass is used to invoke the method, then the version in the child class will be executed. In other words, it is the type of the object being referred to (not the type of the reference variable) that determines which version of an overridden method will be executed.

Flask provides support for API while Django doesn’t have any support for API.
Flask does not support dynamic HTML pages and Django offers dynamic HTML pages.
Flask is a Python web framework built for rapid development whereas Django is built for easy and simple projects.
Flask offers a diversified working style while Django offers a Monolithic working style.
URL dispatcher of the Flask web framework is a RESTful request on the other hand, URL dispatcher of Django framework is based on controller-regex.
Flask is WSGI framework while Django is a Full Stack Web Framework.

Django is based on MVT (Model-View-Template) architecture. MVT is a software design pattern for developing a web application. 
MVT Structure has the following three parts – 

Model: The model is going to act as the interface of your data. It is responsible for maintaining data. It is the logical data structure behind the entire application and is represented by a database (generally relational databases such as MySql, Postgres). 
View: The View is the user interface — what you see in your browser when you render a website. It is represented by HTML/CSS/Javascript and Jinja files.
Template: A template consists of static parts of the desired HTML output as well as some special syntax describing how dynamic content will be inserted.

1. JSON is JavaScript Object Notation. XML is Extensible markup language
2. JSON is based on JavaScript language. XML is derived from SGML.
3. JSON is a way of representing objects. xml is a markup language and uses tag structure to represent data items.
4. JSON does not provides any support for namespaces. XML supports namespaces.
5. JSON supports array. XML doesn’t supports array.
6. JSON files are very easy to read as compared to XML. XML documents are comparatively difficult to read and interpret.