Python

In this article, we will discuss reversing a string in Python. We will look into different approaches. 1. Naive method In this naive approach, we will loop through each letter in the string and joins them to form a reverse string as shown below. Output 2. Reverse using list.reverse() In this approach, we will convert … Read more

This article will discuss the difference between “in” and “is” keywords in Python. The “in” keyword The in operator is a membership operator. In other words, It checks whether an element exists in a sequence. The in operator will return “True” if the element is found in the sequence. Syntax Examples We can see that … Read more

A switch case is a flow control statement used in programming languages. In this article, we will discuss the switch case in Python. The syntax of switch statements in programming languages like C++, C, Java, etc. How does it work? The switch expression is evaluated once The value of each case is evaluated, if there … Read more

Sometimes we might need to check whether a key exists in the Python dictionary. In this article, we will discuss the fastest way to check a key that exists in a Python dictionary. The has_key() method was removed in Python 3 . So the recommended way is to use the in operator. Two ways to … Read more

Python offers different inbuilt functions, one such function is range. In this tutorial, we will learn about range functions in Python with examples. The range function Rather than being a function, the range type is an immutable sequence of numbers. Ranges implement all of the common sequence operations except concatenation and repetition. Syntax of the … Read more

Sometimes we need to reverse the list in Python. In this tutorial, we will learn how to reverse a list in Python. 1. Using the list reverse method The list.reverse() method will reverse the elements of the list in place. Syntax of the list reverse method : Arguments: Reverse method does not take any parameters. … Read more

We may need to work with lists in Python, sometimes we need to remove duplicates from the list. In this article, we will discuss different list duplicate removal methods. Naive method First, we will look simple naive method to remove list duplicates. The basic logic is : Define a result list. Loop the input list. … Read more

In this article, we will discuss how to check an item in a Python list. To check an item in the list, we can use the in operator in Python. Syntax of in operator Examples Output Output The in operator can be used with strings or tuple. Conclusion In conclusion, in Python, it is easy … Read more