Issue #409 (Feb. 25, 2020) (35)

Analysing NBA Assists: How to Visualize Hidden Relationships in Data With Python Using basketball as the background setting, the author discusses several different strategies for uncovering relationships and and producing beautiful visualizations with Python. JP HWANG

PyCon US 2020 Packaging Summit: Registration and Topic Proposal Registration is open for the PyCon US 2020 Packaging Summit. Topic proposals are also being accepted. Both registration and topic proposals close on March 7, 2020. PYTHON.ORG

Django Security Vulnerability: CVE-2020-7471 Django 1.11 before 1.11.28, 2.2 before 2.2.10, and 3.0 before 3.0.3 allows SQL Injection if untrusted data is used as a StringAgg delimiter (e.g., in Django applications that offer downloads of data as a series of rows with a user-specified column delimiter). MITRE.ORG

Working With PDFs in Python In this step-by-step course, you’ll learn how to work with a PDF in Python. You’ll see how to extract metadata from preexisting PDF files. You’ll also learn how to merge, split, watermark, and rotate pages in PDFs using Python and the PyPDF2 library. REAL PYTHON video

Python in Production Hynek Schlawack feels that discussions of Python web applications in production are missing from Python conferences. He is offering to mentor people who are interested in proposing conference talks on the subject HYNEK SCHLAWACK

Null in Python: Understanding Python’s NoneType Object Learn about the NoneType object None, which acts as the “null” in Python. This object represents emptiness, and you can use it to mark default parameters and even show when you have no result. REAL PYTHON

PEP 584 PR Merged (Dictionary Union) This will add the following dictionary operations: dict1 | dict2 (copy + update) and dict1 |= dict2 (update). See PEP 584 for example use cases. GITHUB.COM/PYTHON

Scene From Werner Herzog’s “Programming in Python” ;-) “I see the lie in front of me – import time, and I am appalled – how can a machine offer such a promise, such a lie, the ability to import time as if it were a simple commodity. Once again, the vile snake has bitten me.” TWITTER.COM/MVATTUONE

Pycel: Compiling Excel Spreadsheets to Python and Making Pretty Pictures [2011] Author describes how he compiled Excel spreadsheets with formulas into Python code in order to optimize the calculations and visualize results. Very interesting read! DIRK GORISSEN

Better Python Tracebacks With Rich “I’ve never found Python tracebacks to be a great debugging aid beyond telling me what the exception was, and where it occurred. In a recent update to Rich, I’ve tried to refresh the humble traceback to give enough context to diagnose errors before switching back to the editor.” WILL MCGUGAN

Monitor Python Application Metrics and Distribute Traces in Real Time With Datadog APM Datadog’s APM generates detailed flame graphs that will help your teams identify bottlenecks and latency. If an error is spotted, you can easily pivot to related logs and metrics in seconds to troubleshoot without switching tools or contexts. Visualize Python metrics end-to-end with a free trial → DATADOG sponsor

Introduction to Python SQL Libraries Learn how to connect to different database management systems by using various Python SQL libraries. You’ll interact with SQLite, MySQL, and PostgreSQL databases and perform common database queries using a Python application. REAL PYTHON

A Brief Network Analysis of Symbolism in Blake’s Poetry The author explains how she used the spaCy and NetworkX libraries to analyze William Blake’s 18th century poetry collection The Songs of Innocence and of Excellence. MARTA PALANDRI

Python Packaging Metadata “Since this topic keeps coming up, I’d like to briefly share my thoughts on Python package metadata because it’s – as always – more complex than it seems.” HYNEK SCHLAWACK

How Python Became the Popular Choice “With the popularity of Python with programmers still growing, we tried to understand how it became one of the most impactful languages in the world.” JUN WU

How to Add a robots.txt to Your Django Site robots.txt is a standard file to communicate to “robot” crawlers, such as Google’s Googlebot, which pages they should not crawl. ADAM JOHNSON

Automate Your Dating Life With 100 Lines of Python Author used a Python-based man-in-the-middle proxy to deconstruct network calls made by the Hinge app and then built a service to automatically “swipe right” on dating profiles. ELI MERNIT

Learn Python for Data Science in 4 Weeks Learn the foundational Python programming and statistics skills needed for a job in data science in as little as 4 weeks. Work 1:1 with a data science mentor to master the skills needed to get started in your journey to a data science role. Enroll in Springboard’s data science career track prep course today. SPRINGBOARD sponsor

Managing Kindle Highlights With Python and GitHub Author writes a Python script to build a GitHub repo for storing Kindle book highlights in an organized way. DUARTE O.CARMO

How to Cheat at Unit Tests With Pytest and Black Some tips for quickly writing rough initial implementations for test cases and then iterating on them. SIMON WILLISON

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