Data Structures In Python Explained

Introduction 

Python has become one of the most popular programming languages in the world and is particularly popular among those working in data science and emerging technologies. Several reasons for this popularity include the fact that Python is relatively easy to learn, is extremely versatile, can be used for a wide range of tasks, and has a large and supportive community. 

Python has been used for a long time in traditional web development, system administration, and desktop GUI development. However, its popularity in data science and machine learning has skyrocketed in recent years due to the success of these fields and the rise of Big Data. Python is now the recommended language for many data science libraries and frameworks, such as TensorFlow, PyTorch, and Scikit-learn. 

This popularity is also because Python can keep up with the rapidly changing landscape of these fields. It is constantly evolving, with new libraries and frameworks being constantly released. This means that Python is well-positioned to continue its role as a leading language for data science and machine learning in the years to come. 

Python In Numbers 

According to the Stack Overflow Developer Survey, Python is the second most popular programming language (after JavaScript) and the most wanted programming language (that is, the language that developers who do not yet use say they want to learn most). 

Python’s popularity is growing rapidly. In the same survey, Python ranked fourth in the “most loved” programming languages category (up from fifth in 2018), with 86.7% of respondents expressing interest in continuing to develop with Python. 

Python is a versatile language that can be used for a wide variety of tasks, from web development to data science to artificial intelligence. Python’s ease of use and extensive libraries make it a popular choice for experienced and beginner developers. 

Real-world Applications Of Python 

Python is a powerful programming language that is easy to learn and use. It is versatile and can be used for many different purposes, including web development, machine learning, data wrangling, and scientific computing. Python is a popular language for many different reasons, and it is well suited for creating desktop applications. 

Python is often used in web development as a scripting language for server-side programming, meaning that the code is executed on the server rather than in the browser. This allows for more complex functionality than traditional HTML and CSS and can be used for things like user authentication, database interactions, and generating dynamic content. 

Python is a popular language for machine learning and artificial intelligence because it is easy to read and understand, and many libraries and frameworks are available for these purposes. It is also relatively efficient, meaning it can run on less powerful hardware than other languages.

Python is a versatile language that can be used for data wrangling, cleaning, and analysis. Python is also a popular language for building machine learning models. In the world of big data, Python can be used to process and analyze large datasets. 

Python is used in scientific computing because it is a powerful language that is easy to learn and use. Python is an interpreted language, meaning it can be used to write programs without compiling them first. This makes it ideal for scientific computing, where programs often need to be written quickly and run on different computers. 

Python is especially well suited for creating desktop applications. This is because Python has a well-defined syntax and semantics and a wide range of libraries and tools that can be used to create desktop applications. 

Data Structures In Python 

Data structures in Python are used in computer programming to store, organize, and access data in a way that is efficient and logical. A data structure is a way of organizing data so that it can be used efficiently. Data structures can be classified into two types: linear and non-linear. 

Linear data structures linearly store data, meaning that the data is arranged in a sequence. The most common linear data structures are arrays and linked lists. 

Non-linear data structures store data in a non-linear fashion, meaning that the data is not arranged in a sequence. The most common non-linear data structures are trees and graphs. 

Both linear and non-linear data structures have their advantages and disadvantages. Linear data structures are easier to understand and use but are not as powerful as non-linear data structures. Non-linear data structures are more powerful but can be more difficult to understand and use. 

Linear Data Structures  

A linear data structure is one in which the data items are arranged in a linear sequence. The most common type of linear data structure is an array. Other types of linear Data structures in Python include linked lists, stacks, and Queue. 

Array: An array is a linear data structure that stores a fixed number of data items in sequential order. The items in an array are accessed by their index, which is a number that represents their position in the array. Arrays are often used to store data that is of the same type, such as a list of numbers or a list of strings. 

Linked List In Python: A linked list is a data structure in which the data items are linked together in a linear sequence. A node represents each data item, and each node has a link to the next node in the sequence. Linked lists are used to store data dynamically so that the data items can be added or removed from the list at any time.  

Stack: A Python stack is a linear data structure that stores data in a Last In First Out (LIFO) order. That is, the data item that is added last to the stack is the first one to be removed. This is similar to a stack of plates, where the plate added last is the first to be removed. Stacks are often used to store data that is being used in a recursive process, such as a function that is calling itself. 

Queue: A queue is a linear data structure in which the data items are arranged in sequential order. The items in a queue are accessed in a first-in-first-out (FIFO) order so that the item at the front of the queue is always the next item to be removed. Queues are often used to store data that is to be processed in a FIFO order, such as a queue of tasks to be performed. 

Non-linear Data Structures 

A non-linear data structure is a data structure in which the data items are not arranged in a linear sequence. The most common type of non-linear data structure is a tree and map. Other types of non-linear Data structures in Python include graphs. 

Tree: A tree is a non-linear data structure in which the data items are arranged in a hierarchical order. The tree is made up of nodes, and each node has a link to its parent node and its child nodes. The root node is the topmost node in the tree, and the leaves are the bottommost nodes. Trees are often used to store data that is arranged in a hierarchical order, such as a family tree. 

Map: A map is a non-linear data structure in which the data items are arranged in a two-dimensional order. The map is made up of nodes, and each node has a link to its neighboring nodes. The map is often used to store data arranged in a two-dimensional order, such as a city map. 

Graph: A graph is a non-linear data structure in which the data items are arranged in a network. The graph is made up of nodes, and each node has a link to its neighboring nodes. The graph is often used to store data that is arranged in a network, such as a social network. 

Conclusion 

Data structures is a very broad field that includes much more than simply stacks, queues, and linked lists. There are several other data structures, such as Maps, Hash Tables, Graphs, Trees, and so on. Each data structure has its benefits and drawbacks, and the application’s requirements must utilize it. A computer science student should, at the very least, be familiar with the fundamental data structures and the operations that go with them. 

There are many built-in data structures in Python, as included by default in many high-level and object-oriented programming languages, such as C#, Java, and Python. As a result, understanding how things operate is crucial. 

You must, however, earn a Python certification to hone your Python skills and master the art of Python language. You must check out UNext Jigsaw’s certification courses in light of this. 

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