Do you hate those lengthy class definitions with __init__ and too many whitespaces and newlines? Python One-Liners to the rescue! Luckily, you can create classes in a single line—and it can even be Pythonic to do so! Sounds too good to be true? Let’s dive right into it! Problem: How to create a Python class … Read more
Summary: Since switch-case statements are not a part of Python, you can use one of the following methods to create a switch-case construct in your code : Using a Python Dictionary Creating a Custom Switch Class Using if-elif-else Conditional Statements Using a Lambda Function Problem: Given a selection control switch case scenario in Python; how … Read more
Summary: The key differences between raw_input() and input() functions are the following: raw_input() can be used only in Python 2.x and is obsolete in Python 3.x and above and has been renamed input() In Python 2.x, raw_input() returns a string whereas input() returns result of an evaluation. While in Python 3.x input() returns a string … Read more
In this article, you’ll learn about two variants of this problem. Assign multiple values to multiple variables Assign the same value to multiple variables Let’s have a quick overview of both in our interactive code shell: Exercise: Increase the number of variables to 3 and create a new one-liner! Let’s dive into the two subtopics … Read more
The single line of Python code is more powerful than you may expect. In fact, you can compress whole algorithms in a single line of Python code. In this tutorial, you’ll learn how to use the built-in map() function in Python to one-linerize a critical step that would otherwise take multiple lines of Python code: … Read more
Summary: Python output buffering is the process of storing the output of your code in buffer memory. Once the buffer is full, the output gets displayed on the standard output screen. Buffering is enabled by default and you can use one of the following methods to disable it: Execute the Python code with the -u … Read more
Slice assignment is a little-used, beautiful Python feature to replace a slice with another sequence. Simply select the slice you want to replace on the left and the values to replace it on the right side of the equation. For example, the slice assignment list[2:4] = [42, 42] replaces the list elements with index 2 … Read more
To assign the result of a function get_value() to variable x if it is different from None, use the Walrus operator if tmp := get_value(): x = tmp within a single-line if block. The Walrus operator assigns the function’s return value to the variable tmp and returns it at the same time, so that you … Read more
Summary: To get a cron like scheduler in Python you can use one of the following methods: Use schedule module Use APScheduler Use timeloop library Use CronTab module Cron (also called a cron job) is a software utility that helps a user to schedule tasks in Unix-like systems. The tasks in cron are present in … Read more
Removing duplicates from a list is pretty simple. You can do it with a Python one-liner: Python set elements have to be unique so converting a list into a set and back again achieves the desired result. What if the original order of the list is important though? That makes things a bit more complicated … Read more
A docstring describes a module, function, class, or method in plain English to help other coders understand the meaning better. You must define the docstring at the beginning of the module, function, class, or method definition. By doing so, the docstring becomes the __doc__ special attribute of that object. You can access the docstring of … Read more
You may already know about Python’s capability to create a simple web server in a single line of Python code. Old news. Besides, what’s the point of creating a webserver that only runs on your machine? It would be far more interesting to learn how to access existing websites in a single line of code. … Read more