Daily Python: PyCoder’s Weekly: Issue #360 (March 19, 2019)

#360 – MARCH 19, 2019
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How to Build a Python GUI Application With wxPython

In this step-by-step tutorial, you’ll learn how to create a cross-platform graphical user interface (GUI) using Python and the wxPython toolkit. A graphical user interface is an application that has buttons, windows, and lots of other widgets that the user can use to interact with your application.
REAL PYTHON

Simplify Your Python Developer Environment

How three tools (pyenv, pipx, pipenv) make for smooth, isolated, reproducible Python developer and production environments.
MASON EGGER • Shared by Mason Egger

Automated Code Reviews for Python

Take the hassle out of code reviews—Codacy flags errors so you can fix them quickly. Address security concerns, code duplication, code complexity and drops in coverage, directly from your workflow. Click here to get started →
CODACY sponsor

When C Extensions Crash: Easier Debugging for Your Tests

Learn how to prepare for crashes in advance, so when they do occur you can quickly figure out which part of the codebase caused them: The standard library’s faulthandler, verbose test runs, package listing, and catchsegv on Linux.
ITAMAR TURNER-TRAURING

Why Operators Are Useful

Latest blog post from Guido, related to the recent discussion about Python getting + and - operators for merging dictionaries (PEP 584).
GUIDO VAN ROSSUM • Shared by Ricky White

Python Decorators 101

See step-by-step what Python decorators are and how you can use them to make your own code more Pythonic and expressive.
REAL PYTHON video

Tuple Ordering and Deep Comparisons in Python

Nice deep dive on comparison operators in Python.
TREY HUNNER • Shared by Ricky White

`urllib` CRLF Injection Vulnerability

The current Python 2.x and 3.x implementation of urllib does not encode the \r\n sequence in the query string, which allows an attacker to manipulate a HTTP header with the \r\n sequence in it, so the attacker can insert arbitrary content to the new line of the HTTP header.
PYTHON.ORG

Give Me Back My Monolith

“It feels like we’re starting to pass the peak of the hype cycle of microservices.” Interesting counterpoint to the “everything should be broken down into microservices” hypetrain. Not Python-specific, but worth a read nonetheless.
CRAIG KERSTIENS opinion

Discussions

Guido Explains Why Python Uses 0-Based Indexing

Google Plus is shutting down soon, so here’s a final hurrah.
GOOGLE.COM

There Are Some Huge Speedups in Python 3.8. Will They Also Be Put Into the Older Versions?

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Articles & Tutorials

Understanding the Python Mock Object Library

In this tutorial, you’ll learn how to use the Python mock object library, unittest.mock, to create and use mock objects to improve your tests. Obstacles like complex logic and unpredictable dependencies make writing valuable tests difficult, but unittest.mock can help you overcome these obstacles.
REAL PYTHON

How I Translated a Mathematical Algorithm Into Code: TF-IDF to Python

Does your brain short-circuit when you see a mathematical algorithm? Don’t worry, you’re not alone. In this post you’ll see how the author worked her way through an algorithm, namely TF-IDF, and got it up and running in Python. Nice writeup!
SILKE HENDERICKX • Shared by Silke Henderickx

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Tuesday, March 19, 2019

PyCoder’s Weekly: Issue #360 (March 19, 2019)

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