Daily Python: PyCoder’s Weekly: Issue #458 (Feb. 2, 2021)

#458 – FEBRUARY 2, 2021
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Finding and Fixing an Unexpected Memory Explosion in Pandas

Storing string columns as categories can result in massive memory savings when working with large dataframes in pandas. However, those savings can surprisingly disappear when you start concatenating dataframes. In this article, you’ll learn why, and find out how to fix it.
MARTIN JONES • Shared by Martin Jones

Constant Folding in Python

Every programming language aims to be performant and Python is no exception. Take a dive deep into Python internals and find out how Python makes its interpreter performant using a technique called constant folding.
ARPIT BHAYANI

Visualize and Optimize Your Python App Performance With Datadog APM

Datadog APM generates detailed flame graphs from real requests so you can see which services or calls are generating errors or contributing to overall latency. Dive deeper into your production code with an always-on code profiler to troubleshoot. Start monitoring your applications with a free trial →
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Pyston 2.1 Is Blowing Past Python 3.8/3.9 Performance

Pyston is an alternative Python interpreter. According to these benchmarks, it’s significantly outperforming Python 3.8 and 3.9.
MICHAEL LARABEL

Stochastic Gradient Descent Algorithm With Python and NumPy

Learn what the stochastic gradient descent algorithm is, how it works, and how to implement it with Python and NumPy.
REAL PYTHON

Discussions

Guido and Eric Idle Converse on Twitter

Python creator Guido van Rossum and Monty Python actor (and IDLE namesake) chat about the Python programming language on Twitter.
TWITTER.COM/ERICIDLE

Python Jobs

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Articles & Tutorials

Django and Pydantic

Learn how to integrate Pydantic with a Django application using the Pydantic-Django and Django Ninja packages.
NIK TOMAZIC • Shared by Michael Herman

Python Web Applications: Deploy Your Script as a Flask App

In this tutorial, you’ll learn how to go from a local Python script to a fully deployed Flask web application that you can share with the world.
REAL PYTHON

OO in Python Is Mostly Pointless

Is object-oriented programming a pointless paradigm? Maybe, maybe not. But it’s worth considering alternatives when deciding how to write your code. Read the article for an argument against OOP and then follow the Hacker News discussion for the debate.
LEON TROLSKI opinion

Courier: The Fastest Way to Build Notifications for Your Python App

Send notifications from your Python app in just a few lines of code. One API to reach users over Email, SMS, Push, Slack, and more. Design notifications in a drag & drop editor, manage user preferences, and troubleshoot quickly. Get started for free.
COURIER sponsor

Database Constraints in Django

Learn about the various database constraints Django supports to ensure data integrity.
STEVEN PATE • Shared by Steven Pate

Processing Images in Python With Pillow

Are you interested in processing images in Python? Do you need to load and modify images for your Flask or Django website or CMS? Then you most likely will be working with Pillow, the friendly fork of PIL, the Python imaging library. This week on the show, we have Mike Driscoll, who is writing a new book about image processing in Python.
REAL PYTHON podcast

Messing Around With the Python Shell

This is a fun little experiment aiming to mix bash and Python. While not meant to be taken too seriously, it’s an interesting look at using the subprocess module.
BAIRAKTARIS KONSTANTINOS

Plot With Pandas: Python Data Visualization Basics

In this course, you’ll get to know the basic plotting possibilities that Python provides in the popular data analysis library pandas. You’ll learn about the different kinds of plots that pandas offers, how to use them for data exploration, and which types of plots are best for certain use cases.
REAL PYTHON

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Tuesday, February 2, 2021

PyCoder’s Weekly: Issue #458 (Feb. 2, 2021)

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