Level Up Your Python by Reading Code, Need-to-Know Django Template Tags, Python Music Theory, and More

#469 – APRIL 20, 2021

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Learn by Reading Code: Python Standard Library Design Decisions Explained
Along your Python learning journey, someone may have told you that a great way to level up your skills is to read code written by other people. That’s definitely true, but it’s not easy to find good sources of code to read and study. Python offers some advantages here because not only is the code open source, but the discussion surrounding design decisions is public, too.
ADRIAN

Learn Text Classification With Python and Keras
Learn about Python text classification with Keras. Work your way from a bag-of-words model with logistic regression to more advanced methods leading to convolutional neural networks. See why word embeddings are useful and how you can use pretrained word embeddings. Use hyperparameter optimization to squeeze more performance out of your model.
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Fluent in Django: 8 Django Template Tags You Should Know
The Django template language has some powerful features that can simplify your templates and solve a number of problems. Learn about eight template tags that you might not have heard of in this listicle that’s full of practical examples.
GIRL THAT LOVES TO CODE

Python 3.10 Will Include Improved Error Messages
If you mistype an attribute name, you’ll get suggestions from existing attributes!
TWITTER.COM/PYBLOGSAL

The PSF Is Hiring a Python Packaging Project Manager!
PYTHON SOFTWARE FOUNDATION

Flask 2.0 Is Coming Soon and You Can Help Test It
REDDIT

Google Becomes First Ever Visionary Sponsor for the PSF
TWITTER.COM/THEPSF

Discussions

PEP 563, PEP 649, and the Future of pydantic
Python 3.7 introduced postponed evaluation of type annotations behind the from future import __annotations__ switch, a feature originally proposed in PEP 563. Libraries like pydantic, used extensively in the popular FastAPI framework, have found it difficult to support PEP 563, which is set to become the default in Python 3.10. A new PEP aims to alleviate some of the issues, but sentiment is mixed.
GITHUB.COM/SAMUELCOLVIN

Why Does Python Return [15] for [0xfor x in (1, 2, 3)]?
If you thought this unusual expression would return an error, you’re not alone. There’s actually a lot of nuance to how this works, and would probably trip up even experienced Python devs. See this tweet from Ned Batchelder for even more discussion.
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Python Jobs

Intermediate Python Developer (Boulder, CO, USA)
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Software Engineer (New York, NY, USA)
TRUVERIS

Data Engineer (Seattle, WA, USA)
DOXO

Software Development Engineer (Indianapolis, IN, USA)
TOC LOGISTICS INTERNATIONAL, INC.

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Articles & Tutorials

Basic Music Theory in ~200 Lines of Python
Music has always had a close relationship with mathematics and makes heavy use of repeated patterns and formulas. These characteristics make music ripe for investigation with code. This article covers some of the basics of Western music theory with examples in Python. The article is quite accessible — no knowledge of reading sheet music needed! After you’ve read the article, check out the discussion on Hacker News.
MANOHAR VANGA

OrderedDict vs dict and Object Oriented Programming in Python vs Java
Are you looking for a bit of order when working with dictionaries in Python? Are you aware that the Python dict has changed over the last several versions and now keeps items in order? Could you learn more about object-oriented programming in Python by comparing it to another language? Find out more in this week’s installment of the Real Python Podcast.
REAL PYTHON podcast

Python Jobs With Relocation Assistance
Want to work abroad? Check out this selection of Python jobs with relocation packages! All the roles listed are open to international applicants. Job locations: Canada, the UK, Germany, the Netherlands, Finland, Czechia, Japan, etc.
RELOCATE.MEsponsor

Understanding and Generating a UPC-A Barcode Using Python
Have you ever wondered how the barcodes you see on products work? Did you know that the first barcodes originated from Morse code? This article teaches you how UPC-A barcodes, one of the current barcode standards, work and how you can create them from scratch using Python.
YASOOB KHALID

Deploying a Python Flask Example Application Using Heroku
In this step-by-step tutorial, you’ll learn how to create a Python Flask example web application and deploy it using Heroku. You’ll also learn how to set up Heroku Pipelines to create a deployment workflow with staging and production environments.
REAL PYTHON

Build a Python Directory Tree Generator for the Command Line
In this step-by-step project, you’ll create a Python directory tree generator application for your command line. You’ll code the command-line interface with argparse and traverse the file system using pathlib.
REAL PYTHON

Projects & Code

Brought to you by Real Python for Teamssponsor
Online Python training created by a community of experts. Give your team the real-world Python skills they need to succeed →

splitflap: DIY Split-Flap Display
GITHUB.COM/SCOTTBEZ1

TTS: A Deep Learning Toolkit for Text-to-Speech
GITHUB.COM/COQUI-AI

PyCall.jl: Call Python Functions From the Julia Language
GITHUB.COM/JULIAPY

collie_recs: Deep Learning Hybrid Recommender Systems in PyTorch
GITHUB.COM/SHOPRUNNER • Shared by Nathan Jones

bodywork-core: MLOps Tool for Deploying Machine Learning Projects to Kubernetes
GITHUB.COM/BODYWORK-ML

simplematch: Minimal, Super Readable String Pattern Matching
GITHUB.COM/TFELDMANN • Shared by Thomas Feldmann

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Level Up Your Python by Reading Code, Need-to-Know Django Template Tags, Python Music Theory, and More

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Python Jobs

Articles & Tutorials

Projects & Code

📆🐍 Upcoming Python Events

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