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PyCoder - Concurrency, Arguments, Flask, and More

#592 – AUGUST 29, 2023 VIEW IN BROWSER
The PyCoder’s Weekly Logo
Asyncio, Twisted, Tornado, Gevent Walk Into a Bar…
A good introduction to I/O bound concurrency in Python and the libraries used to achieve it. Has a nice compare and contrast between the approaches and finishes with some good advice: you probably don’t need any of them.
BITE CODE

What Are Python Asterisk and Slash Special Parameters For?
In this tutorial, you’ll learn how to use the Python asterisk and slash special parameters in function definitions. With these symbols, you can define whether your functions will accept positional or keyword arguments.
REAL PYTHON

Companies like Gitlab, Snowflake and Slack Scan Their Code for Vulnerabilities Using Semgrep
Scan your code and dependencies for free with Semgrep - the trusted OSS tool used by top companies like Gitlab, Snowflake, and Slack. No security expertise needed, simply add your project and let Semgrep do the work in just minutes →
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Deep Dive Into Flask Guide
Become a better web developer by taking a deep dive into Flask’s internals to learn about its core features and functionality.
TESTDRIVEN.IO • Shared by Patrick Kennedy

Python 3.11.5, 3.10.13, 3.9.18, and 3.8.18 Released
CPYTHON DEV BLOG

Call for Papers: XtremePython 2023 Online December 5, 2023
XTREMEPYTHON.DEV


Articles & Tutorials


Improving Classification Models With XGBoost
How can you improve a classification model while avoiding overfitting? Once you have a model, what tools can you use to explain it to others? This week on the show, we talk with author and Python trainer Matt Harrison about his new book Effective XGBoost: Tuning, Understanding, and Deploying Classification Models.
REAL PYTHON podcast

Build a Code Image Generator With Python
In this step-by-step tutorial, you’ll build a code image generator that creates nice-looking images of your code snippets to share on social media. Your code image generator will be powered by the Flask web framework and include exciting packages like Pygments and Playwright.
REAL PYTHON

Build Invincible Apps With Temporal’s Python SDK
Get an introduction to Temporal’s Python SDK by walking through our easy, free tutorials. Learn how to build Temporal applications using Python, including building a data pipeline Workflow and a subscription Workflow. Get started her →
TEMPORALsponsor

Usages of Underscore
This article teaches you about all of the use cases that the underscore (_) has in Python, from the use cases that have syntactic impact, to well-accepted conventions that make your code semantically clearer, to usages that improve the readability of your code.
RODRIGO GIRÃO SERRÃO • Shared by Rodrigo Girão Serrão @ mathspp

7 Sneaky Tricks to Crush Slow Database Queries
“Optimizing Django query performance is critical for building performant web applications.” This blog post explores a collection of additional and essential tips that help pinpoint and resolve your inefficient Django queries.
JOHNNY METZ

Table Recognition and Extraction With PyMuPDF
This blog post walks you through programmatically identifying tables on PDF pages and extracting their content using PyMuPDF. Table identification and extraction was recently added in PyMuPDF version 1.23.0.
HARALD LIEDER • Shared by Harald Lieder

Operator Overloading in Python
Python is an object-oriented programming language and one of its features is that it supports operator overloading, learn how to overload common operators such as addition, subtraction, comparison, and more.
ALEJANDRO SÁNCHEZ YALÍ • Shared by Alejandro

Click and Python: Build Extensible and Composable CLI Apps
In this tutorial, you’ll learn how to use the Click library to build robust, extensible, and user-friendly command-line interfaces (CLI) for your Python automation and tooling scripts.
REAL PYTHON

Learn How to Deploy Scientific AI Models to Edge Environments, Using OpenVINO Model Server
🤔 Can cell therapy and AI be used together? Learn how to efficiently build and deploy scientific AI models using open-source technologies with Beckman Coulter Life Sciences at our upcoming DevCon OpenVINO webinar. #DevCon2023
INTEL CORPORATIONsponsor

Understanding Automatic Differentiation in 30 Lines of Python
Automatic differentiation is at the heart of neural network training. This article introduces you to the concept by showing you some Python that implements the algorithm.
VICTOR MARTIN

Make Each Line Count, Keeping Things Simple in Python
Simplicity is hard. This article talks briefly about how you approach coding while keeping things simple.
BOB BELDERBOS


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 →

tragic-methods: Collection of Programming Quirks
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hamilton: Micro-Framework for Defining Dataflows
GITHUB.COM/DAGWORKS-INC

CodeGeeX: OSS Multilingual Code Generation Model
GITHUB.COM/THUDM

aquarel: Styling Matplotlib Made Easy
GITHUB.COM/LGIENAPP

microdot: Impossibly Small Web Framework for MicroPython
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📆🐍 Upcoming Python Events


Weekly Real Python Office Hours Q&A (Virtual)
 August 30, 2023

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 August 31, 2023

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 September 2 to September 4, 2023

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 September 4, 2023

Cloud Builder: Python Conf
 September 6 to September 7, 2023

PyCon Estonia 2023
 September 7 to September 9, 2023

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 September 7 to September 10, 2023
Happy Pythoning!
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Polars, Immortal Objects, Playwright, and More

Tuesday, August 22, 2023

Python Polars: A Lightning-Fast DataFrame Library #591 – AUGUST 22, 2023 VIEW IN BROWSER The PyCoder's Weekly Logo Python Polars: A Lightning-Fast DataFrame Library Welcome to the world of Polars,

Annotating self, Context Managers, PEP 723, and More

Tuesday, August 15, 2023

How to Annotate Methods That Return `self` #590 – AUGUST 15, 2023 VIEW IN BROWSER The PyCoder's Weekly Logo How to Annotate Methods That Return self In this tutorial, you'll learn how to use

Pandas 2.0, Foreign Functions, Versioning, and More

Tuesday, August 8, 2023

Exploring Pandas 2.0 & Targets for Apache Arrow #589 – AUGUST 8, 2023 VIEW IN BROWSER The PyCoder's Weekly Logo Exploring Pandas 2.0 & Targets for Apache Arrow What are the new ways to

F-Strings in Py3.12, Profiling, Quirks, No-GIL, and More

Tuesday, August 1, 2023

Python 3.12 Preview: More Intuitive and Consistent F-Strings #588 – AUGUST 1, 2023 VIEW IN BROWSER The PyCoder's Weekly Logo Python 3.12 Preview: More Intuitive and Consistent F-Strings In this

Folium, 6502 Emulator, Pystack, and More

Tuesday, July 25, 2023

Creating Web Maps From Your Data With Python Folium #587 – JULY 25, 2023 VIEW IN BROWSER The PyCoder's Weekly Logo Creating Web Maps From Your Data With Python Folium You'll learn how to create

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