Bookmarks (3457)

Cheat Sheet: 9 Python Security Best Practices Tip #1: Avoid PyYAML vulnerabilities by using yaml.SafeLoader() instead of yaml.Loader(). Learn 8 more tips in the Python security cheat sheet. SNYK.IO sponsor

Monitor Your Home’s Temperature and Humidity With Raspberry Pis and Prometheus Do you enjoy collecting and analyzing data, or are you looking for a fun project to improve your data skills? Do you also enjoy tinkering with hardware? Then this project might be a fun one for you to check out! Learn how to set up a RaspberryPi using Prometheus to collect and monitor...

Replit.web: A Python Framework With Built-in Database and Auth Support The folks over at replit have released a new Python web framework with built-in authentication and database support and, more interestingly, hosting. In a few lines of code, you can have a Python web app connected to a database, authenticating users, and hosted on replit. This could be a great tool for quickly building...

Start Using a Debugger With Your Python Code Are you still sprinkling print statements throughout your code while writing it? Print statements are often clunky and offer only a limited view of the state of your code. Have you thought there must be a better way? This week on the Real Python Podcase, Nina Zakharenko discusses her conference talk titled “Goodbye Print, Hello Debugger.”...

Handling 100 Requests Per Second With Python & Django The folks over at Ethical Ads recently broke their ads out of the codebase for Read the Docs, where it had been served from a Django app as part of the Read the Docs code line up until 2019. They decided to use Python and Django for their application since the team already knew that...

Python’s ChainMap: Manage Multiple Contexts Effectively In this step-by-step tutorial, you’ll learn about Python’s ChainMap and how to use it to group multiple dictionaries together and manage them as a single one. ChainMap is handy when you need to manage multiple scopes and contexts and define access priorities. REAL PYTHON

How to Dockerize Django in 5 Minutes This short yet informative tutorial explains how to Dockerize a Django application. The tutorial clocks in at less than a 10 minute read, but still finds time to explain why you should consider using Docker in your Django projects. MATTHEW FREIRE

Using sleep() to Code a Python Uptime Bot Learn how to add time delays to your Python programs. You’ll use the built-in time module to add Python sleep() calls to your code. To practice, you’ll use time.sleep() when making an uptime bot that checks whether a website is still live. REAL PYTHON course

Do Coders Really Learn How to Use Entire Libraries Just From the Documentation? How do you learn a new library? Do you start with the docs? What do you do if the documentation is lacking? Or do you first search for video lessons or written tutorials? REDDIT

Python and REST APIs: Interacting With Web Services In this tutorial, you’ll learn how to use Python to communicate with REST APIs. You’ll learn about REST architecture and how to use the requests library to get data from a REST API. You’ll also explore different Python tools you can use to build REST APIs. REAL PYTHON

Launchpad Now Runs on Python 3 Python 2 was sunsetted over a year ago, but many folks still find themselves maintaining large Python 2 codebases. The Launchpad team recently finished porting their entire codebase to Python 3, and this article reflects on that process, discusses some of the difficulties they encountered, regressions that occurred, and provides a number of lessons they learned throughout the...

PEP 665: Specifying Installation Requirements for Python Projects There’s a new PEP in town, and this one deals with improving how installation requirements are specified in Python projects. The PEP is still in Draft status. PYTHON.ORG

Python’s collections: A Buffet of Specialized Data Types Python has a number of useful data types beyond the built-in lists, tuples, dicts, and sets. In this tutorial, you’ll learn all about the series of specialized container data types in the collections module from the Python standard library. Learning the collections module is a great way to level up your Python programming knowledge! REAL PYTHON

Moving SciPy to the Meson Build System In accordance with PEP 632, distutils will be deprecated in Python 3.10 and in Python 3.12 it will be removed. This posed a big problem for SciPy, since it’s build system depends on NumPy’s distutils module — an extension of Python’s built-in distutils. The SciPy maintainers set out to find a new build system and settled on...

An Immersive Virtual Office For Your Team What if you could run into people at the office…while you work remotely? Gather makes it possible. Claim a desk, chat by the water cooler, and hold important meetings in an interactive space. Free up to 25 users → GATHER sponsor

The Unknown Features of Python’s Operator Module Have you heard of Python’s operator module? It includes functions for common operators, including mathematical operators like +, -, *, and /, and well as operators for getting items from dictionaries and accessing object attributes. The operator module might seem confusing at first glance. This article explores why it exists, what benefits you get from it, and...

Do Not Use Mutable Objects as Default Arguments in Python Ah, mutable default arguments. If you haven’t come across them in your Python journey yet, this Reddit thread is full of examples of Python developers that lost time debugging functions with a mutable default argument. Avoiding mutable defaults is good advice in general, but blanket absolute statements are dangerous. To counter this discussion, here’s...

The Pandas DataFrame: Working With Data Efficiently In this tutorial, you’ll get started with Pandas DataFrames, which are powerful and widely used two-dimensional data structures. You’ll learn how to perform basic operations with data, handle missing values, work with time-series data, and visualize data from a Pandas DataFrame. REAL PYTHON course

Testing the Diff How do you write good tests? It’s a challenging problem because there are a number of layers involved. You need to write good test code that follows best practices. But you also need to write tests that aren’t fragile and make sure tests really test what you expect them to. This article gives an example of a seemingly harmless test that...

Beautiful Ideas in Programming: Generators and Continuations This article explores how generators, which you can create in Python using the yield keyword in a function, are special cases of a more powerful construct called “continuations.” The author compares Python’s generator syntax to creating continuations in Scheme, a modern LISP dialect. The idea isn’t so much to learn how to write generators and continuations, but...

What Can You Do With Python and Counting Objects Using Counter How is Python being used today, and what can you do with the language? Do you want to develop software, dive into data science and math, automate parts of your job and digital life, or work with electronics? This week on the Real Python Podcast, David Amos is back, and he’s brought another...

Why Tracing Might Replace (Almost) All Logging Lightstep CEO and Co-founder Ben Sigelman shares his vision for the future of distributed tracing. LIGHTSTEP sponsor

Efficient Pagination in Django and Postgres Pagination breaks up results from a query into chunks called “pages” so that only a few results are returned to the user at a time. In many cases, using native SQL tools like LIMIT and OFFSET can get you up and running with pagination quickly and work fairly well. But on datasets with millions of rows, this method...

Your First Steps With Django: Set Up a Django Project This tutorial provides a walkthrough and a reference for starting a Django project and app. You can use it as a quick setup guide for any future Django project and tutorial you’ll work on. REAL PYTHON

CPython Developer in Residence Week One Report After years of fundraising efforts, the Python Software Foundation finally hired their first CPython Developer-In-Residence. Łukasz Langa reports on what he accomplished during his first week on the job, how he’s finding a balance between the various tasks required of him, and what his plans are for next week. He’s included a full detailed log of everything...

Serverless Django APIs With AWS Lambda and Zappa Hosting serverless apps on AWS can be a lot of work if you set everything up manually. The Zappa project makes configuring and deploying a serverless app on AWS Lambda a cinch! This tutorial walks you through creating a Django REST API and deploying it to AWS Lambda with Zappa step-by-step. You’ll even learn how to...

Python Community Interview With Dustin Ingram Dustin Ingram is a developer advocate at Google, a director of the PSF, and a maintainer of PyPI. In this interview, Dustin talks about how Google’s use of Python might differ from your own, maintaining PyPI, his love of PyCons and cooking, and more. REAL PYTHON

Understand Django: Making Sense Of Settings All Django apps need to be configured in order to run properly. This article walks you through how the Django settings file works and how it is organized. You’ll learn about environment variables and how to use them in your settings. You’ll also see some patterns for dealing with settings in different environments, such as development, testing, and...

Planning a Faster Future at the Python Language Summit Do you wonder what the future may hold for the Python language? Are there speed improvements coming soon? What if you could be in the room while the core developers discuss Python’s future? This week on the podcast, we have Joanna Jablonski, who was invited to the Python Language Summit 2021 as a journalist to...

Rev APIs Solve All of Your Speech-to-Text Needs Rev.ai is the most sophisticated automatic speech recognition in the world. Our speech-to-text APIs are more accurate, easier to use, and have less bias than competitors like Google, Amazon, and Microsoft. Try Rev.ai free for five hours right now → REV.AI sponsor

Maps With Django: GeoDjango, PostGIS, and Leaflet This quickstart guide shows you how to create a web map using Django’s GeoDjango module. Data for the map is stored in a PostgreSQL database using the PostGIS extension, and Leaflet, a lightweight JavaScript library for interactive maps, is used on the front-end. You’ll not only learn how to set up the Django application and display the...

Speech Recognition With Python In this course, you’ll cover the fundamentals of speech recognition with Python. You’ll learn which speech recognition library gives the best results and build a full-featured “Guess The Word” game with it. REAL PYTHON course

NumPyic Way to Sort an ndarray Clockwise There might not be too many applications for this, but the accepted solution to this Stack Overflow question is pretty slick and features a NumPy array method that you might have glossed over: .rot90(). STACK OVERFLOW