Bookmarks (50)

String translate and maketrans Methods The str methods translate and maketrans are lesser used, but helpful. You can use translate to replace characters in a string using a translation map, and maketrans helps you to build those maps. RODRIGO GIRÃO SERRÃO

Illustrating the Duality of Closures and Objects In functional programming languages, closures are used for similar purposes to classes in object oriented languages. Python supports both, learn more about how they compare. JONATHAN E. MAGEN

Caching Connection Objects in Python Three different mechanisms are common for having a single instance of a DB connection in your Python code: module level imports, the lru_cache decorator, or through singletons. See examples of each. REDOWAN DELOWAR

Understand Django: Debugging Tips And Techniques Your Django app is up. You’ve got users. Your users are hitting bugs. How do you debug to fix the problems? This article dives deep into to how to find and squish the bugs in your Django code. MATT LAYMAN • Shared by Matt Layman

Build a CRUD Application Using Django, React & Docker Step-by-step instructions on creating a web application with a React front-end and the Django Rest Framework as a back-end and all tied together with Docker for distribution. MANGABO KOLAWOLE

Contributing to Open Source: rich #2073 Rodrigo decided he’d start contributing to Open Source and it began by being assigned bug #2073 in the rich library. This article goes into great detail on environment set up, how he found the bug, and what it took to squish it. RODRIGO GIRÃO SERRÃO • Shared by Rodrigo Girão Serrão

Tips That May Save You From the Hell of PyYAML YAML is a data-serialization language that is widely used, but processing YAML, especially using PyYAML can be painful and full of traps. Learn some tips and code snippets that can make your life with PyYAML easier. XIAO / REORX • Shared by Reorx

Python Decorator Patterns Decorators are a way of wrapping functions around functions, they’re a common technique for providing pre- and post-conditions on your code. Learn about the different ways decorators get invoked and how to write each pattern. MARTON TRENCSENI

REPL Python Programming and Debugging With IPython IPython is a powerful alternative to the built-in REPL. Learn how to use it for exploratory programming and debugging, including using it in the Django shell. LUKE PLANT

Boolean Short-Circuiting Learn how and and or are processed in your code, how Boolean short-circuiting works, how “truthy” values effect this, and how all this is handled in the all() and any() functions. RODRIGO GIRÃO SERRÃO

Converting a Python Library to Rust Alan describes his experience porting his Python library August to Rust. He outlines the resulting performance difference and things he learned along the way. ALAN TRICK

Ultimate Guide to Python Pickle: How To’s, Exploits & Safety Python’s pickle library is useful in maintaining persistence within complex data structures and objects. Learn how to safely use a pickle in application development using this comprehensive guide → SNYK.IO sponsor