Bookmarks (3745)

The Composition Over Inheritance Principle “In Python as in other programming languages, this grand principle encourages software architects to escape from Object Orientation and enjoy the simpler practices of Object Based programming instead.” BRANDON RHODES

Using the “not” Boolean Operator in Python In this step-by-step tutorial, you’ll learn how Python’s “not” operator works and how to use it in your code. You’ll get to know its features and see what kind of programming problems you can solve by using “not” in Python. REAL PYTHON

How to Quickly Label Data for Machine Learning With Toloka, you can control the accuracy and speed of data labeling to develop high performing ML models.  Our platform supports annotation for image classification, semantic segmentation, object detection, named entity recognition, sentiment analysis, speech recognition, text classification → TOLOKA AI sponsor

Using the len() Function in Python In this tutorial, you’ll learn how and when to use the len() Python function. You’ll also learn how to customize your class definitions so that objects of a user-defined class can be used as arguments in len(). REAL PYTHON

PEP 670 [Draft]: Convert Macros to Functions in the Python C API “Converting macros and static inline functions to regular functions makes these regular functions accessible to projects which use Python but cannot use macros and static inline functions.” PYTHON.ORG

A NASA TV Still Frame Viewer in Python Spacestills is a Python program for viewing NASA TV still frames. It’s a learning project based on the PySimpleGUI GUI framework. PAOLO AMOROSO

A New, Free Python Code Quality & Security Scanner With Real-Time Scanning Like Grammarly for your code. Scan your Python code for quality & security issues, and get fix advice in your IDE. Get started with Snyk for free. SNYK.IO sponsor

Writing Idiomatic Python What are the programming idioms unique to Python? This course is a short overview for people coming from other languages and an introduction for beginners to the idiomatic practices within Python. You’ll cover truth values, looping, DRY principles, and the Zen of Python. REAL PYTHON course

Notes From the Meeting on Python GIL Removal Between Python Core and Sam Gross “During the annual Python core development sprint we held a meeting with Sam Gross, the author of nogil, a fork of Python 3.9 that removes the GIL. This is a non-linear summary of the meeting.” ŁUKASZ LANGA

PEP 660: Editable Installs for pyproject.toml Based Builds (Wheel Based) “Now that PEP 517 provides a mechanism to create alternatives to setuptools, and decouple installation front ends from build backends, we need a new mechanism to install packages in editable mode.” PYTHON.ORG

Django 4.0 Beta 1 Released Check out the work-in-progress development release notes for more details. DJANGO SOFTWARE FOUNDATION

PyCon US 2022: Conference Website Launched PyCon US 2022 takes place in Salt Lake City, Utah from April 27, 2022 to May 5, 2022. PYCON.ORG

Welcoming the CPython Developer in Residence Earlier this year, the Python Software Foundation announced the creation of the Developer in Residence role. The first Visionary Sponsors of the PSF have provided funding for this new role for one year. What development responsibilities does this job address? This week on the show, Łukasz Langa talks about becoming the first CPython Developer in Residence. REAL PYTHON...

Python Assignment Expressions and Using the Walrus Operator In this course, you’ll learn about assignment expressions and the walrus operator. The biggest change in Python 3.8 was the inclusion of the := operator, which you can use to assign variables in the middle of expressions. You’ll see several examples of how to take advantage of this new feature. REAL PYTHON course

A Roadmap to XML Parsers in Python In this tutorial, you’ll learn what XML parsers are available in Python and how to pick the right parsing model for your specific use case. You’ll explore Python’s built-in parsers as well as major third-party libraries. REAL PYTHON

How APT Does Its Fancy Progress Bar “Today while running an apt full-upgrade I asked myself how apt does this nice progress bar stuck at the bottom line while still writing scrolling text.” Python example code included. JULIEN PALARD

Configuration Is an API, Not an SDK Guidelines for config management in general and for Python apps in particular. Why “Configuration is just another API of your app” might be a good philosophy to adopt. HERNAN LOZANO • Shared by Hernan Lozano

Python’s property(): Add Managed Attributes to Your Classes In this step-by-step tutorial, you’ll learn how to create managed attributes, also known as properties, using Python’s property() in your custom classes. REAL PYTHON

Pip vs Conda: A Comparison of Python’s Two Packaging Systems “Python has two commonly used packaging systems, pip and Conda. Learn the differences between them so you can pick the right one for you.” ITAMAR TURNER-TRAURING

Secure Password Handling in Python Protect and secure your passwords and credentials in Python with help of these techniques and tips. MARTIN HEINZ • Shared by Martin Heinz

Understanding np.where() The NumPy where() function is like a vectorized switch that you can use to combine two arrays. BEN COOK