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 […]
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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
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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
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I don’t know about you, but I enjoy listening to music. As an avid music fan, I also like to rip my CDs to MP3 so I can listen to my music on the go a bit easier. There is still a lot of music that is unavailable to buy digitally. Unfortunately, when you rip
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Python provides a couple of really nice modules that you can use to craft emails with. They are the email and smtplib modules. Instead of going over various methods in these two modules, you’ll spend some time learning how to actually use these modules. Specifically, you’ll be covering the following: The basics of emailing How
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This week we welcome Tonya Sims (@TonyaSims) as our PyDev of the Week! Tonya is a Python Developer Advocate for Vonage and is an active member of the Real Python community. Tonya recently gave a talk called “Faceoff Fun with Python Frameworks: FastAPI vs Flask” at EuroPython 2021. Let’s spend some time getting to know
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The Jupyter Notebook is an open-source web application that allows you to create and share documents that contain code, equations, visualizations, and formatted text. By default, Jupyter Notebook runs Python out of the box. Additionally, Jupyter Notebook supports many other programming languages via extensions. You can use the Jupyter Notebook for data cleaning and transformation,
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As a developer, there are times where you may end up with two or more dictionaries that you need to combine into one master dictionary. There are lots of different ways to merge dictionaries in the Python programming language. In this tutorial, you will look at a few of the old ways to merge dictionaries
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In this video tutorial, you will learn all about how to import modules using the import and from keywords Related Tutorials Python 101: All about imports Creating a Simple Wizard with wxPython (Video) Python 101 – Working with Files (Video)
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Python 3.10 is adding a new feature called Structural Pattern Matching, which is defined in PEP 634 and has a tutorial on the topic in PEP 636. Structural Pattern Matching brings the case / switch statement to Python. The new syntax goes beyond what some languages use for their case statements. This tutorial’s aim is
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ReportLab is a very powerful library. With a little effort, you can make pretty much any layout that you can think of. I have used it to replicate many complex page layouts over the years. In this tutorial, you will be learning how to use ReportLab’s pdfgen package. You will discover how to do the
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The Python Imaging Library (PIL) is a 3rd party Python package that adds image processing capabilities to your Python interpreter. It allows you to process photos and do many common image file manipulations. The current version of this software is in Pillow, which is a fork of the original PIL to support Python 3. Several
Python 101 – How to Work with Images Read More »
This week we welcome Nikita Sobolev (@sobolevn) as our PyDev of the Week! Nikita is the founder of wemake.services. Nikita also writes a technical blog that you should check out. You can also see what he’s working on over on GitHub. Let’s take a few moments to get to know Nikita better! Can you tell
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Documenting your code early on is quite a bit more important than most new developers realize. Documentation in software development refers to the idea of giving your variables, functions and other identifiers descriptive names. It also refers to adding good comments. When you are immersed in developing your latest creation, it is easy to create
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Python 3.10 has several new typing features. They are given in detail here: PEP 604, Allow writing union types as X | Y PEP 613, Explicit Type Aliases PEP 612, Parameter Specification Variables The focus of this tutorial is to talk about PEP 604, which makes writing union types easier when adding type annotation (AKA:
Python 3.10 – Simplifies Unions in Type Annotations Read More »