The “hello world program” is used in programming languages to set up a minimal programming environment and execute the first trivial program in it. It helps you get your environment going and take your first steps towards a more complicated program. This short tutorial will show you the fastest possible way to write your first … Read more
Among the ingredients that make a programming language powerful are control flow statements. The Python for loop is one such control flow statement. The if statement is another one. In this tutorial, you’ll learn about both! Python For Loop The world around us is built around repetition. The sun goes up every morning and after … Read more
The FizzBuzz problem is a common exercise posed in code interviews to test your proficiency in writing simple Python code. Problem: Print all numbers from 1-100 to the shell with three exceptions: For each number divisible by three you print “Fizz”, For each number divisible by five you print “Buzz”, and For each number divisible … Read more
Summary: To import a module given the full path, the following methods can be used : Using the importlib module Using SourceFileLoader class Using sys.path.append() function Adding __init__ file to the folder containing the module and then importing it Problem: How to import a module if its full path has been given? Example: Consider we … Read more
A lambda function allows you to define a function in a single line. It starts with the keyword lambda, followed by a comma-separated list of zero or more arguments, followed by the colon and the return expression. For example, lambda x, y: x+y calculates the sum of the two argument values x+y in one line … Read more
Every Python coder hates semicolons ; to terminate statements. If you’re like me and somebody shows you the following Python code, you’ll start to wonder if the person confused Python with Java or C++. Python Semicolon Example [One-Liner] Here’s how one may use the semicolon: If you run this Python one-liner with semicolons, you’ll get … Read more
Summary: To call an external command in a Python script, use any of the following methods: subprocess.call() function subprocess.run() function subprocess.Popen Class os.system() function os.popen() function Whether you are a developer or a system administrator, automation scripts are going to be a common part of your daily routine. These may include automating routine tasks like … Read more
Are you ready to take your Python knowledge to the next level? Let’s have a little fun with the inputs. Only instead of having you enter your name, we’ll work with numbers. It’s a nice, simple calculator. You enter in two numbers and it adds them together to give you an answer. Simple, right? Well, … Read more
When Guido van Rossum released the first viable Python version 0.9.0 in 1991, he couldn’t have expected (by a long shot) that he was on the verge of creating the most influential programming language in the world. Python has a bright future: every new Python version adds new features to the programming language. In this … Read more
To sort and return a Python list in a single line of code, use the sorted(list) method that returns a new list of sorted elements. It copies only the references to the original elements so the returned list is not a deep but a shallow copy. Let’s dive into the challenge to learn about more … Read more
Summary: Download a file over the web by using the following steps in Python. Import libary requests Define URL string Get file data from URL Store file data in file object on your computer Here’s how you can do this to download the Facebook Favicon (source): At the beginning of our struggle with web scraping, … Read more
The histogram is one of the most important plots for you to know. You’ll use it every time you explore a dataset. It is the go-to plot for plotting one variable. In this article, you’ll learn the basics and some intermediate ideas. You’ll plot histograms like a pro in no time using Python and matplotlib. … Read more