PyCoder’s Weekly: Issue #400 (Dec. 24, 2019)

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#400 – DECEMBER 24, 2019
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Python Dictionary Iteration: Advanced Tips & Tricks

In this intermediate-level course, you’ll take a deep dive into how to iterate through a dictionary in Python. Dictionaries are a fundamental data structure, and you’ll be able to solve a wide variety of programming problems by iterating through them.

Introduction to ASGI: Emergence of an Async Python Web Ecosystem

“If you were thinking Python had been getting locked into data science, think again! Python web development is back with an async spin, and it’s exciting.” Great writeup!

Scout APM for Python


Check out Scout’s developer-friendly application performance monitoring solution for Python. Scout continually tracks down N+1 database queries, sources of memory bloat, performance abnormalities, and more. Get back to coding with Scout →
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12 Trending Alternatives for Distributing Python Applications in 2020

A look at the various systems to choose from for packaging and distributing Python code.
CRISTIAN MEDINA • Shared by Cristian Medina

NumPy, SciPy, and Pandas: Correlation With Python

Learn what correlation is and how you can calculate it with Python. You’ll use SciPy, NumPy, and Pandas correlation methods to calculate three different correlation coefficients. You’ll also see how to visualize data, regression lines, and correlation matrices with Matplotlib.

Python Performance Tips

Various tips and tricks that help improve the performance of your Python programs.

Django Security Releases Issued: 3.0.1, 2.2.9, and 1.11.27

Addresses CVE-2019-19844: Potential account hijack via password reset form.

Python Jobs

Python Web Developer (Remote)

Premiere Digital

Senior Python Engineer (Munich, Germany)

Stylight GmbH

Software Engineer (Bristol, UK)

Envelop Risk

Python Contractor RaspPi/EPICS (Nelson, BC, Canada)

D-Pace Inc

More Python Jobs >>>

Articles & Tutorials

Running Python With Docker: How to Try the Latest CPython Release

Learn how to run different Python versions in Docker. By following the examples, you’ll see how you can play with the latest development version of Python, and how to use Dockerfiles to set up Python environments and package your own scripts.

How to Make Python Wait

“For many types of applications, at times it is necessary to pause the running of the program until some external condition occurs. […] In this article I’m going to show you a few different ways to wait.”

Python Tricks: A Buffet of Awesome Python Features


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Python’s Built In IDE Isn’t Just Sitting IDLE

An episode about the IDLE package built into Python and how it reduces the friction associated with learning to program by having an easy to use IDE out of the box.

Creating Interactive Dashboards From Jupyter Notebooks

This article discusses how to build an interactive dashboard to analyze reddit content and display interactive graphs of the result using Voilà.

Prioritizing Simplicity in Your Python Code

This is part of a series about the Zen of Python. This article focuses on the third and fourth principles: simplicity and complexity.

Working With Redis in Python With Django

This post introduces you to Redis as a key-value store and uses it in a Django project to explore its functionality.

Dependency Injection in Python With Pinject

Learn the basic principles of Dependency Injection and how to implement it in Python using the Pinject library.
PEPY.TECH • Shared by Petru Rares Sincraian

Precise Unit Tests With PyHamcrest

Hamcrest is a Python framework designed to make test assertions easier to write and more precise.

Mocking Python Like a Boss

The Mock Generator is a library to simplify and shorten the time it takes to write Python mocks.
PETER KOGAN • Shared by Peter Kogan

Create a Simple Telegram Bot With Telethon

Quick tutorial for creating your own bot for the Telegram messenger.
MISHA BEHERSKY • Shared by Misha Behersky

Guide to Python Import Statements

How to resolve common importing problems in Python 2 and 3.
CHRIS YEH • Shared by Jonathan Willitts

Projects & Code


SPb Python Drinkup

December 26, 2019

PythOnRio Meetup

December 28, 2019

Python Sheffield

December 31, 2019

STL Python

January 1, 2020

PiterPy Breakfast

January 1, 2020

Happy Pythoning!
This was PyCoder’s Weekly Issue #400.
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