Whether you are a beginner or a professional, dictionaries are an integral part of your programming journey, especially if you are coding in Python. Python dictionaries are all about key-value pairs which help you to perform your task. There are restrictions on dictionary keys, but values have none. Literally, anything can be a value. As … Read more
Problem Formulation: Given a float number. How to convert it to octal representation? Examples: Consider the following desired conversions from float decimal numbers to their converted float octal numbers. input: 3.14 output: 3.1075 input: 0.01 output: 0.005 input: 12.325 output: 14.246 You can play with some examples here: Solution: The following code function float_to_octal() takes … Read more
Python’s built-in open() function opens a file and returns a file object. The only non-optional argument is a filename as a string of the file to be opened. You can use the file object to access the file content. For example, file_obj.readlines() reads all lines of such a file object. Here’s a minimal example of … Read more
This article will cover a specific issue that most Python users encounter when using Matplotlib for plotting their graphs. I am talking about defining multiple subplots and being able to access and change their properties individually. In the following sections, we will see how to use the Matplotlib function .subplots() for generating multiple subplots and … Read more
Python’s built-in super() method returns a temporary object of the superclass to help you access its methods. Its purpose is to avoid using the base class name explicitly. It also enables your class to inherit from multiple base classes. Visual Idea super() The idea is simple: use super() to call the methods defined in the … Read more
Problem Formulation: Compare RPM Versions in Python Given two lists of strings that are the RPM versions currently installed on your computer and the versions in a repository or another environment. How to compare those lists to find the RPMs that are out of date? Example: Our goal is to determine a list of packages … Read more
Summary: This blog explains the various ways one can extract commonly used Emojis embedded within text. Note: All the solutions provided below have been verified using Python 3.9.0b5. Problem Formulation One has a list with normal text words and emojis, all mixed together, as shown below. How does one extract only the emojis, into a … Read more
Python’s built-in input() function reads a string from the standard input. The function blocks until such input becomes available and the user hits ENTER. You can add an optional prompt string as an argument to print a custom string to the standard output without a trailing newline character to tell the user that your program … Read more
The Python memoryview(arg) function returns a memoryview object of the given bytes or bytearray argument. This exposes the argument’s internal data (buffers) to help you access the data without intermediate copying. Syntax: memoryview(object) Arguments object Bytes or Bytearray object for which the memoryview should be returned Return Value memoryview Returns memoryview of the object. Python … Read more
A newline is used to mark the end of a line and the beginning of a new one, and in this article we are going to look at how to read a file in Python without these newline breaks. To begin with we are going to create a simple .txt file. After each line of … Read more
Don’t leave for your next coffee break until you have glanced over this collection of 101 awesome, geeky nerd jokes.
Python’s built-in hash(object) function takes one object as an argument and returns its hash value. As the hash value is calculated based on the object’s data, two different but equal objects must have the same hash value. It doesn’t follow, though, that two objects with the same hash value are equal—they can have the same … Read more