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(Solution) ValueError: math domain error in Python

While working with mathematical functions using the math module in python we might come across the “ValueError math domain error” error. Python throws this error whenever we try to do…

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Python string append | How to Append String in Python

In this article, we will learn to append multiple strings or characters in a python program. In Python, strings are immutable objects, which means we cannot modify the original string….

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How to reverse a range in python | Reverse Range

In this article, we will see different ways to reverse a range in python with some examples. In Python, we use the range function often while working with loops, lists,…

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Sort List or Dictionary by two keys in Python

In this article, we will learn how to sort a list or dictionary using multiple keys in Python. Sorting a list or dictionary can be easily done using the sort()…

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Create Directory if not Exists in Python

In this article, we will see how to create a directory if the specified directory does not exist using python. In Python, we can create a directory/folder programmatically with the…

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Prepend List in Python (Append at the beginning)

In this article, we will learn how to prepend items in a list in Python. Python has an in-built method called append() to append (add at the end) items to…

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How to flatten nested list in python (5 ways)

A list in python is one of the most flexible data types. It can have multiple dimensions i.e it can contain lists inside a list. It is known as the…

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NVM Error – exit status 1: Access is denied – Fixed

In this article, we will see two different ways how to fix NVM Error – exit status 1: Access is denied Error in Windows 10 and 11. What is NVM?…

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Javascript nullish coalescing (double question mark) operator

In this article, we will learn about the double question mark operator i.e the nullish coalescing operator in Javascript. While working or reviewing codes on Github, we sometimes come across…

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