Shubham Sayon[toc] Problem Statement: How to get the filename without the extension from a path in Python? Example: Suppose you have a file with the following path: C:\Users\SHUBHAM SAYON\Documents\folder1 Here, we just need to get the filename, i.e. “demo“. In Python, files are used to store information. We can perform many operations on the files- read, write, … Read more
[toc] The groupby() function saves you a ton of time and headache when analyzing data. It is fast and eases handling massive data. However, you may fail to maximize its potential if you don’t know how to use it. That is why this tutorial explains DataFrame grouping using relatable challenges, code snippets, and solutions. 💡 … Read more
[toc] Problem Statement: How to return multiple values from a given function in Python? Functions are used to break the program into smaller chunks. As the program grows larger, functions make it more organized. In Python, functions are generally used for performing a specific task that involves returning a particular value. But in some cases, … Read more
[toc] Problem Statement: How to get a key by its value in a dictionary in Python Example: We have a clear idea about the problem now. So without further delay, let us dive into the solutions to our question. 🎬Video Walkthrough Solution 1: Using dict.items() Approach: One way to solve our problem and extract the … Read more
[toc] Many factors could lead to the error: ‘pip’ is not recognized as an internal or external command. Two of the most common ones are Python’s or pip’s incorrect installation and lacking path in the system environment variables. This tutorial deeply explains the concept of environment variables, system paths, and pip’s way of storing packages … Read more
[toc] Summary: The preferred approach to find the length of any given Python object is to use the len function and pass the object within the function as an argument. Python will then implicitly call the special __len__ method on the object that was passed. Problem Statement: Is arr.__len__() the preferred way to get the length of an array … Read more
– Firstly, open the file in write mode by passing the file path and access mode “w” to the open() function.
– Next, we have to use the “for” loop to iterate the list. In each iteration, we will get a list item that we need to write in the file using the write() method.
– After iterating through the whole list, we need to ensure that we have closed the file. For that, we use the close() method.
Learn – How to Fix : “ImportError: Cannot import name X” in Python.
Overview Resampling a Numpy array means changing the size of the matrix. The most efficient way to resample a numpy array representing an image is using scipy.ndimage.zoom function. The ndarray is the array to resample. The zoom part accepts either a single number or sequence. Inputting a single number implies the image will get zoomed … Read more
Overview Problem: How to check if a given value is NaN? Here’s a quick look at the solutions to follow: So, what is a NaN value? NaN is a constant value that indicates that the given value is Not a Number. It’s a floating-point value, hence cannot be converted to any other type other than … Read more
Summary: You can use consecutive single-line comments (using # character) to create a block of comments (multiline comments) in Python. Another way is to use “”” quotes to enclose the comment block. Problem Statement: How to create multiline comments in Python? Other programming languages like C++, Java, and JavaScript, have an inbuilt mechanism (block comment … Read more
[toc] Problem Statement: How to define a method outside of class definition in Python? Example: Can we create foo() outside of the class definition or maybe even in another module? Introduction We all know Python is an object-oriented programming language, and in Python, everything is an object including properties and methods. In Python, the class … Read more