These tutorials are for developers who already understand the basics of Python and they would like to expand their knowledge
Are you ready to power up your Python skills? The Python programming language has more than 200 modules in its standard library. In this tutorial, you will learn about functools, a module that is tailor-made for acting on or returning other modules. You will learn about how to use functool decorators effectively, caching, function overloading …
Learn how to use Python’s amazing standard library to add caching to your functions. In this video tutorial, you will learn how to use functools.cache to add caching to a function If you’d like to learn more about the functools module, you can check out this other video of mine:
When you are creating an application, you will usually want to be able to tell your application how to do something. There are two popular methods for accomplishing this task. You can make your application accept command-line arguments or you can create a graphical user interface. Some applications support both. Command-line interfaces are helpful when …
How to Create a Command-line Application with argparse Read More »
I am happy to announce that I am creating a Python 101 video course, which is based on Python 101: 2nd Edition. The course will eventually include videos that cover the chapters in the books. It is launching with 13 videos that run 168+ minutes! The following link will give you $10 off! Purchase Now …
Concurrency is a big topic in programming. The concept of concurrency is to run multiple pieces of code at once. Python has a couple of different solutions that are built-in to its standard library. You can use threads or processes. In this chapter, you will learn about using threads. When you run your own code, …
In this tutorial, you will learn the basics of testing with Python and the built-in unittest module You can also read the article that this video is based on at Mouse vs Python here: Python 3 Testing: An Intro to unittest
My talk, Creating GUIs with PySimpleGUI, is up on YouTube. I gave this talk to the SFPython / PyBay groups in January 2022. I used Jupyter Notebook for the slides of this talk. All the slides and example code are available in my GitHub Talks repo. You can learn more about PySimpleGUI in the …
Python provides a great module for creating your own iterators. The module I am referring to is itertools. The tools provided by itertools are fast and memory efficient. You will be able to take these building blocks to create your own specialized iterators that can be used for efficient looping. In this article, you will …
I had a use-case where I needed to create a class that had an attribute that was a Python list. Seems simple, right? The part that made it complicated is that I needed to do something special when anything was appended to that attribute. Watching for attribute changes don’t work the same way for lists …
How to Override a List Attribute’s Append() Method in Python Read More »
When you first get started as a programmer or software developer, you usually start by writing code that prints to your console or standard out. A lot of students are also starting out by writing front-end programs, which are typically websites written with HTML, JavaScript and CSS. However, most beginners do not learn how to …
Python 101 – How to Create a Graphical User Interface Read More »
The Portable Document Format (PDF) is a very popular way to share documents across multiple platforms. The goal of the PDF is to create a document that will look the same on multiple platforms and that will print the same (or very similar) on various printers. The format was originally developed by Adobe but has …
There are many common file types that you will need to work with as a software developer. One such format is the CSV file. CSV stands for “Comma-Separated Values” and is a text file format that uses a comma as a delimiter to separate values from one another. Each row is its own record and …
Assignment expressions were added to Python in version 3.8. The general idea is that an assignment expression allows you to assign to variables within an expression. The syntax for doing this is: NAME := expr This operator has been called the “walrus operator”, although their real name is “assignment expression”. Interestingly, the CPython internals also …
When you create a Python file, you are creating a Python module. Any Python file that you create can be imported by another Python script. Thus, by definition, it is also a Python module. If you have two or more related Python files, then you may have a Python package. Some organizations keep all their …
Python came out with a special new keyword several years ago in Python 2.5 that is known as the with statement. This new keyword allows a developer to create context managers. But wait! What’s a context manager? They are handy constructs that allow you to set something up and tear something down automatically. For example, …