The question reveals that there may be some gap in understanding the basics of Python’s regular expression library. How to match an exact word or string using a regular expression in Python? So if you’re an impatient person, here’s the short answer: To match an exact string ‘hello’ partially in ‘hello world’, use the simple … Read more
Problem Formulation Given three arrays: The first two arrays x and y of length n contain the (x_i, y_i) data of a 2D coordinate system. The third array c provides categorical label information so we essentially get n data bundles (x_i, y_i, c_i) for an arbitrary number of categories c_i. 💬 Question: How to plot … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to create a sequence of numbers in Python. To make it more fun, we have the following running scenario: Lux Lottery has decided to create a new Quick-Pick game called Lux-150. This game is based on seven (7) random numbers between 1 and 150 … Read more
Learn – How to Fix : “ImportError: Cannot import name X” in Python.
The most Pythonic way to convert a list of integers ints to a list of strings is to use the one-liner strings = [str(x) for x in ints]. It iterates over all elements in the list ints using list comprehension and converts each list element x to a string using the str(x) constructor. This article … Read more
What’s the Absolute Path of a File? The absolute path (i.e., full path) is just what it sounds like — it’s the exact path to, and location of, the file entered as your function’s parameter, within the hierarchical structure on your machine. The absolute path always starts at the root directory with no regard for … Read more
¿Cómo se puede filtrar una lista en Python utilizando una condición arbitraria? La forma más pitónica y más eficiente es utilizar la comprensión de lista [x for x in list if condition] para filtrar todos los elementos de una lista. Filtrar con comprensión de lista La forma más pitónica de filtrar una lista, en mi … Read more
Microsoft Excel is a cross-platform and battle-tested spreadsheet software widely used for data analysis and visualization. It is a powerful and user-friendly tool indeed! But how can we bring it to the next level? We can combine Excel with Python to read data from Excel, save data to Excel with formats, formulas, and even charts, … Read more
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
Words carry meaning and meaning is important in computer science. If you asked the question, your words can carry either of the two meanings. In other words, there are two ways to read this question: How to remove an element from a list in Python? How to remove an element from a NumPy array in … Read more
Problem Formulation and Solution Overview As a Pythonista, coding issues may occur where you need to apply a function against NumPy elements. To make it more fun, we have the following running scenario: We have a NumPy array containing five (5) negative numbers related to an inconsistent inventory count. Therefore, the Vice-President of Rivers Clothing … 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