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match/case, Mutable Python Strings, Cleaning Text With Pandas, and More

#460 – FEBRUARY 16, 2021 VIEW IN BROWSER
The PyCoder’s Weekly Logo
PEP 634: Structural Pattern Matching (match/case)
A few links related to PEP 634, which will add structural pattern matching to Python via a new match/case statement: PEP 634 (Specification), PEP 635 (Motivation and Rationale), PEP 636 (Tutorial & Examples)
PYTHON.ORG

Python Strings Are Immutable, but Only Sometimes
It turns out you can mutate a string in Python… sort of.
AUSTIN HENLEY

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Making a Difficult Data Analysis Question Easy With Pandas
A great strategy to use when faced with a tricky data analysis problem is to reshape the dataset into a format that turns it into an easy problem. In this article, you’ll look at an example involving a simple calculation and extensive reshaping in pandas.
MARTIN • Shared by Martin

Efficiently Cleaning Text With Pandas
In this article, you’ll see some examples of cleaning text fields in a large data file and learn several strategies for efficiently cleaning unstructured text fields using Python and pandas.
CHRIS MOFFITT

Building Rich Terminal Dashboards
Learn how to use the Rich CLI library’s new terminal dashboard feature.
WILL MCGUGAN

Python Microservices With gRPC
Learn how to build a robust and developer-friendly Python microservices infrastructure using gRPC and Kubernetes. You’ll also explore advanced topics such as interceptors and integration testing.
REAL PYTHON

Python 3.7.10 and 3.6.13 Security Updates Now Available
CPYTHON DEV BLOG


Discussions


The New match/case Statement Has People Talking
Numerous people opine on Twitter about the new match/case statement expected in Python 3.10. While some folks welcome the powerful new syntax, others lament the syntax bloat and potential for confusion they see in the new feature.
RUSSELL KEITH-MAGEE & BRANDON RHODES

Pattern Matching Accepted for Python
Discussion of last week’s acceptance of PEP 634.
HACKER NEWS


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Articles & Tutorials


Python cryptography, Rust, and Gentoo
A recent update to the Python cryptography library, which has started replacing some of its C code with Rust, stirred up some controversy among users and library maintainers.
JAKE EDGE

Unraveling Python’s Syntax to Its Core With Brett Cannon
Brett is a Python core developer and he’s been working on a series of articles where he is unraveling the syntax of Python. His series is a fantastic resource for those wanting to learn how Python is structured and works at its core.
REAL PYTHON podcast

Python Tricks: A Buffet of Awesome Python Features
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The PEP 8 Song
A songification of that most holiest of Python Enhancement Proposals.
LEON SANDØY video

Pandas Sort: Your Guide to Sorting Data in Python
Learn how to sort data in a pandas DataFrame using the pandas sort functions sort_values() and sort_index().
REAL PYTHON

An Interesting Issue Around Using is With a Literal in Python
When you use is to compare a value to a literal, such as the empty string '', you’ll see a SyntaxWarning that tells you not to use is that way, but your code may still work as intended. Learn why your code still works, and why you really should heed the warning.
CHRIS SIEBENMANN

Creating PyQt Layouts for GUI Applications
In this step-by-step course, you’ll learn how to use PyQt layouts to arrange and manage the graphical components on your GUI applications. With the help of PyQt’s layout managers, you’ll be able to create polished and professional GUIs with minimal effort.
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Python “Tricks” I Can Not Live Without
Learn some fun and useful Python “tricks” that can help you write cleaner and more maintainable code.
SEBASTIAN OPAŁCZYŃSKI

Speeding Up Python Code With Nim
You need to speed up some Python code, but don’t know C and don’t have time to learn it. Enter Nim!
WULF

Adding Social Authentication to Flask
Learn how to add social authentication with GitHub and Twitter to a Flask application.
AMAL SHAJI • Shared by Amal Shaji

Earley Parser
Here’s an article for the computer science-minded folks. Learn how to create an Earley parser from scratch in Python, which allows you to use any context-free grammar to parse a string and recover all of the parse trees that correspond to the grammar from the generated parse forest. Heady stuff, I know!
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sdf: Simple SDF Mesh Generation in Python
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Spokestack: Library for Voice Applications
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NAVis: Neuron Analysis and Visualization
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geovoronoi: Create and Plot Voronoi Regions Inside Geographic Areas
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