Key Driver Analysis, Defaultdicts, Unladen Swallows, and More

#446 – NOVEMBER 10, 2020

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Doing Key-Driver Analysis in Python
Take a look at how statistical knowledge plays an important role in answering business questions like “What drives the winningness of candy?” Along the way you’ll learn how to do Key-Driver analysis in Python on a problem that can’t be easily solved with a call to a machine learning library.
BRYCE MACHER

Handling Missing Keys With the Python Defaultdict Type
In this step-by-step course, you’ll learn how the Python defaultdict type works and how to use it for handling missing keys when you’re working with dictionaries. You’ll also learn how to use a defaultdict to solve problems like grouping or counting the items in a sequence or collection.
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Optimize Code Performance in Production, at Any Scale, All the Time, Without Impacting your Application Performance

Datadog’s Continuous Profiler is an always-on, production code profiler that enables you to analyze code-level performance across your entire environment, with minimal overhead. Profiles reveal which functions (or lines of code) consume the most resources, such as CPU and memory. Try it yourself →
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Distance Metrics for Machine Learning
Many machine learning algorithmns can be summarized as transforming data to n-dimensional vectors and computing similarity between points by means of some distance metric. This article explores four of these metrics—the Euclidean, Manhattan, Minkowski, and Hamming distances—and how to compute them with Python.
JAIME ZORNOZA

Caching in Python Using the LRU Cache Strategy
Caching is an essential optimization technique. In this tutorial, you’ll learn how to use Python’s @lru_cache decorator to cache the results of your functions using the LRU cache strategy. This is a powerful technique you can use to leverage the power of caching in your implementations.
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Python Is Now Officially the Second Most Popular Programming Language
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First Year as a Data Scientist Reflection
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Articles & Tutorials

Use Sentiment Analysis With Python to Classify Movie Reviews
In this tutorial, you’ll learn about sentiment analysis and how it works in Python. You’ll then build your own sentiment analysis classifier with spaCy that can predict whether a movie review is positive or negative.
REAL PYTHON

Law of Large Numbers and the Central Limit Theorem (With Python)
Time for a Python-infused math lesson! The Law of Large Numbers and the Central Limit Theorem are fundamental concepts in statistics and machine learning. Learn how these theorems work with illustrative examples in Python.
ARTI AGARWAL

Find Performance Bottlenecks in Python Code

“We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. Yet we should not pass up our opportunities in that critical 3%.” - Donald Knuth. Blackfire lets you find the 3%. Supports all Python versions. Quick install & appealing UI →
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The World Needs Women Who Code
Author Seema Saharan argues that now is better than ever for women to get started in the tech industry. Learn how she got started with coding, why she enjoys it, and why women should consider learning to code. The article is full of resources to help aspiring women coders get started with Python.
SEEMA SAHARAN

The Real Python Podcast – Episode #34: The Python Modulo Operator & Managing Data With SQLite and SQLAlchemy
Are you ready to move beyond flat files for your data in Python? Maybe you’re not sure where to start with databases and SQL. This week on the show, David Amos returns with another batch of PyCoder’s Weekly articles and projects. We cover a Real Python article about managing data with SQLite and SQLAlchemy.
REAL PYTHON podcast

Building a Lightweight Blogging CMS in 10 Lines of Code
For small projects, many of the popular content manage systems, such as Wordpress or Medium, are overkill or potentially present significant downsides for authors. In this article, you’ll learn how to build a light-weight CMS in just a few lines of code!
STEVEN TEY

Get Distributed Tracing in your Python Apps with OpenTelemetry
Watch this on-demand webinar to learn how to get started with OpenTelemetry in Python, and how to help your organization successfully deliver value from distributed tracing.
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CSRF Protection in Flask
Cross-Site Request Forgery (CSRF) is an attack against a web application in which the attacker attempts to trick an authenticated user into performing a malicious action. Learn how to protect against CSRF attacks in Flask projects.
AMAL SHAJI

Learning Python Test Automation
Python is a great language for test automation. Here’s a big list of resources to help you get started!
ANDY KNIGHT

A Python Interface to the Dutch Atmospheric Large-Eddy Simulation
Python is playing an increasingle large role in research science. This article discusses how one group of researches used Python to create a high-level interface to a popular Fortran simulation library for atmospheric simulation. Although academic, the article is approachable and provides insight into the methodology and frameworks used to make C and Fortran libraries more accessible.
SCIENCEDIRECT.COM

Monty Python and the Holy Grail: Airspeed Velocity of an Unladen Swallow
It’s a question for the ages: “what is the airspeed velocity of an unladen swallow?” Get your Monty Python kicks and do a little math. Can you come up with a Python script that answers the question?
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Projects & Code

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tinygrad: A Small Autograd Tensory Library
You like pytorch? You like micrograd? You love tinygrad! ❤️ - geohot/tinygrad
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allennlp: An Open-Source NLP Research Library, Built on PyTorch
GITHUB.COM/ALLENAI

pifuhd: High-Resolution 3D Human Digitization From a Single Image
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omuse: Package for Multi-Physics and Multi-Scale Earth Science Simulations
GITHUB.COM/OMUSE-GEOSCIENCE

PyAnchor: Find Your Broken Links, So Users Don’t
GITHUB.COM/ENDLESSTRAX • Shared by Ricky White

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Fourier Transforms, Executing Bytecode, Python Simulations, and More

Tuesday, November 3, 2020

Fourier Transforms With scipy.fft: Python Signal Processing #445 – NOVEMBER 3, 2020 VIEW IN BROWSER The PyCoder's Weekly Logo Fourier Transforms With scipy.fft: Python Signal Processing In this

A Faster CPython, Modulo in Practice, Isolating Code, and More

Tuesday, October 27, 2020

Python Modulo in Practice: How to Use the % Operator #444 – OCTOBER 27, 2020 VIEW IN BROWSER The PyCoder's Weekly Logo Python Modulo in Practice: How to Use the % Operator In this tutorial, you

Python in the Movies, Reading Crazy Excel Files, Exploring Fractals, and More

Tuesday, October 20, 2020

Python For Feature Film #443 – OCTOBER 20, 2020 VIEW IN BROWSER The PyCoder's Weekly Logo Python For Feature Film A look into how Python is used to bring your favorite movies to the big screen.

Python 3.9 Follow-Up, PSF Python Survey 2020, Upcoming pip Changes, Web Scraping, and More

Tuesday, October 13, 2020

Exploring the New Features of Python 3.9 #442 – OCTOBER 13, 2020 VIEW IN BROWSER The PyCoder's Weekly Logo Exploring the New Features of Python 3.9 Python 3.9 has arrived! Real Python contributors

Python 3.9 Released, Rich Comparisons, Streamlit Games, and More

Tuesday, October 6, 2020

Cool New Features in Python 3.9 #441 – OCTOBER 6, 2020 VIEW IN BROWSER The PyCoder's Weekly Logo Cool New Features in Python 3.9 In this course, you'll explore some of the coolest and most

Data Science Weekly - Issue 588

Thursday, February 27, 2025

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💻 Issue 451 - .NET 10 Preview 1 is now available!

Thursday, February 27, 2025

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Thursday, February 27, 2025

This week's Awesome Node.js Weekly Read this email on the Web The Awesome Node.js Weekly Issue » 458 Release Date Feb 27, 2025 Your weekly report of the most popular Node.js news, articles and

Key Driver Analysis, Defaultdicts, Unladen Swallows, and More

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📆🐍 Upcoming Python Events

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Fourier Transforms, Executing Bytecode, Python Simulations, and More

A Faster CPython, Modulo in Practice, Isolating Code, and More

Python in the Movies, Reading Crazy Excel Files, Exploring Fractals, and More

Python 3.9 Follow-Up, PSF Python Survey 2020, Upcoming pip Changes, Web Scraping, and More

Python 3.9 Released, Rich Comparisons, Streamlit Games, and More

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