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Regular Expression in Python

By Dinesh Thakur

In this tutorial we are going to talk about regular expressions and their implementation or usage in the Python programming language.

What is RegEx?

Regular expressions in Python also write in short as RegEx, or you can also pronounce it as regX. In simple words, a regular expression is a sequence of characters that define the search pattern. We know that a sequence of characters is simply a string. A string that acts as a pattern for searching something in any given text can term as a regular expression. [Read more…] about Regular Expression in Python

Python File I/O: Read and Write to Files in Python

By Dinesh Thakur

In this tutorial, we will explore the print() function in detail in the Python Programming Language Standard Library. There are many built-In functions that you can use for various purposes.

One of these functions is a print() function. Those of the print() function is that it takes any data and the printed on the screen or any output device. We will take a simple example to show how to use the print() function to print a string data type on the screen. [Read more…] about Python File I/O: Read and Write to Files in Python

Functions in Python

By Dinesh Thakur

A function in python is a group of statements within a program that performs a specific task. Usually functions input data, process it, and “return” a result. Once a function is written, it can be used repeatedly.

Types of Functions

Functions can be of two types one is a built-in function, and other is a user-defined function. [Read more…] about Functions in Python

Dictionary in Python

By Dinesh Thakur

In this tutorial, I’m going to show you how to use dictionaries in Python. How to build, view, add, delete elements from them and different built-in techniques.

What are Dictionaries in Python

Dictionary in Python are like associative lists or a map. Now you can think of a dictionary as a list of key:value pairs. A dictionary is an unordered, changeable collection which does not allow duplicates. Let me show you how to define a dictionary. [Read more…] about Dictionary in Python

Sets in Python

By Dinesh Thakur

In this tutorial, we are going to learn how to use sets in Python. how sets are created, how they’re elements are updated, and all operations that can be performed on sets.

What is sets in python

A set is an unordered collection with no duplicate elements, no indexing and must be immutable (cannot be changed). [Read more…] about Sets in Python

Tuples in Python

By Dinesh Thakur

In this Tutorial we are going to see how to use tuples in Python. Tuples are the most versatile, useful data types in Python. In almost any non-trivial Python program, you will discover them.

What are tuples in python

The tuples in python are very similar to lists. The tuple is an orderly and unchangeable collection. Allow duplicate members. It used to store the collection of elements in a single variable. Still, there is a significant difference between them, and that difference is tuples are immutable. Once tuples created, the content in the tuple cannot be changed. [Read more…] about Tuples in Python

Multithreading in Python

By Dinesh Thakur

You can use multiprocessing and multi-threading through the python programming language. In this tutorial, you learn how to write multithreading applications in Python.

What is Multitasking in Python?

In general, Multitasking can be defined as “performing multiple tasks of one process at one time.“. In technical terms, Multitasking refers to an operating system’s ability to perform several different tasks simultaneously. For example, you’re installing something on your PC, such as game, and you’re concurrently playing a music. The same OS does both these tasks, and activities are executed in sync. It is nothing but Multitasking and aims to save time in addition to increasing productivity. [Read more…] about Multithreading in Python

Binary Search in Python

By Dinesh Thakur

This guide will teach how to implement a binary search algorithm in Python while looking for a particular number in a list.

What is Binary search in Python

A Binary Search in Python is a technique for finding a specific element in a sorted list. The algorithm operates by recursively splitting sublists until they can be searched to the desired value. When scanning massive arrays, a binary search is much more effective than a linear search. Specifically, the binary search runs at a logarithmic time in the worst case, O(log n), while linear search runs at linear time O(n) in the worst case. We will concentrate on how to write a binary search algorithm in Python. [Read more…] about Binary Search in Python

Selection Sort in Python

By Dinesh Thakur

In this tutorial, we’ll talk about selection sort, but what’s wrong with bubble sort in python. The problem is in every iteration, first of all, we do multiple iterations because we have to make sure that you get assorted values, and at one point, you swap two values. The thing is, in each iteration, you do multiple swapping, so there’s nothing wrong in traversing from start to end. But swapping consumes the processing power, so we don’t want to do that. We don’t want to consume our CPU power and memory to do that, so swapping should be done only once, and that’s where selection sort comes into the picture. [Read more…] about Selection Sort in Python

Bubble sort in Python

By Dinesh Thakur

In this tutorial, we will try to sort a list using a sorting technique, which is bubble sort, sometimes referred to as sinking sort, there are different sorting techniques available, but bubble sort works well and is the easiest one.

The figure below illustrates the working of bubble sort algorithm: [Read more…] about Bubble sort in Python

Exception Handling in Python

By Dinesh Thakur

In this tutorial, you’ll learn how to define, raise, catch and exception handling in python – with a few examples.

Exceptions Handling in Python

In Python, different errors may occur while executing a code due to incorrect input or even other unpredictable errors. Where the program encounters an error and something goes wrong with the program, the Python interpreter interrupts the current process and moves it over to the calling process – before it handles. [Read more…] about Exception Handling in Python

map() Function in Python

By Dinesh Thakur

Python’s map() is a built-in function that executes a specified function on all the elements of an iterator and returns a map object (an iterator) for retrieving the results. The elements are sent to the function as a parameter. An iterator, for example, can be a list, a tuple, a string, etc., and it returns an iterable map object. [Read more…] about map() Function in Python

Switch Case in Python

By Dinesh Thakur

The Switch-Case statement is an important decision-making programming feature that is widely used in modular programming, enabling you to execute different blocks of code based on a variable value during runtime. Unlike many other languages, Python does not directly support switch or a case statement. [Read more…] about Switch Case in Python

Python String swapcase() Method

By Dinesh Thakur

For this method, no external module needs to import. Wherever you want to modify a string’s character cases, call it. Let’s have a look at the swapcase() definition:

The Python String swapcase() function transforms the case of uppercase string characters to lowercase and vice versa. There is no parameter needed, and a string returns after case conversion. [Read more…] about Python String swapcase() Method