Open-source News

Collect sensor data with your Raspberry Pi and open source tools

opensource.com - Tue, 03/09/2021 - 16:02

I have lived in 100-plus-year-old brick houses for most of my life. They look nice, they are comfortable, and usually, they are not too expensive. However, humidity is high in the winter in my climate, and mold is a recurring problem. A desktop thermometer that displays relative humidity is useful for measuring it, but it does not provide continuous monitoring.

In comes the Raspberry Pi: It is small, inexpensive, and has many sensor options, including temperature and relative humidity. It can collect data around the clock, do some alerting, and forward data for analysis.


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Learn Python dictionary values with Jupyter

opensource.com - Tue, 03/09/2021 - 16:01

Dictionaries are the Python programming language's way of implementing data structures. A Python dictionary consists of several key-value pairs; each pair maps the key to its associated value.

For example, say you're a teacher who wants to match students' names to their grades. You could use a Python dictionary to map the keys (names) to their associated values (grades).

If you need to find a specific student's grade on an exam, you can access it from your dictionary. This lookup shortcut should save you time over parsing an entire list to find the student's grade.


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Take the first global open source maintainer survey

opensource.com - Tue, 03/09/2021 - 16:00

Nadia Eghbal's 2016 Ford Foundation report on open source software infrastructure shed light on the problem of public code being built and maintained in large part by unpaid volunteers. Since then, the industry has been eager to understand how and why maintainers do this and what we can collectively do to support them better.


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Different Ways to Use Column Command in Linux

Tecmint - Tue, 03/09/2021 - 14:14
The post Different Ways to Use Column Command in Linux first appeared on Tecmint: Linux Howtos, Tutorials & Guides .

Have you ever been in a situation to work with CSV files and produce output in structured tabular format? Recently I was working with data cleansing on a file that is not in a

The post Different Ways to Use Column Command in Linux first appeared on Tecmint: Linux Howtos, Tutorials & Guides.

Intel Contributes New "KCPUID" Utility For Linux To Reliably Report CPU Features

Phoronix - Tue, 03/09/2021 - 13:00
Intel engineers have been working on a tool called kcpuid for showing the raw CPU features/capabilities of a processor under Linux. This utility will be part of the kernel source tree and is queued up now in tip's x86/misc branch, thereby making it material for Linux 5.13 barring any issues coming up...

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