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It's important to remember that Python, the language, isn't changing, and it isn't becoming statically typed. Mypy is a separate program, running outside Python, typically as part of a continuous integration (CI) system or invoked as part of a Git commit hook. The idea is that Mypy runs before you put your code into production, identifying where the data doesn't match the annotations you've made to your variables and function parameters.

A previous article covered some basics about file permissions on your Fedora system. This installment shows you additional ways to use permissions to manage file access and sharing. It also builds on the knowledge and examples in the previous article...........

Linux is fully capable of running not weeks, but years, without a reboot. In some industries, that’s exactly what Linux does, thanks to advances like kpatch and kgraph. For laptop and desktop users, though, that metric is a little extreme. While it may not be a day-to-day reality, it’s at least a weekly reality that sometimes you have a good reason to reboot your machine. And for a system that doesn’t need rebooting often, Linux offers plenty of choices for when it’s time to start over. read more

At DevFest DC in June, Sara Robinson, developer advocate at Google Cloud, gave the most seamless live demo I've ever witnessed. Sara live-coded a machine model from scratch using TensorFlow and Keras. Then she trained the model live, deployed it to Google's Cloud AI platform, and used the deployed model to make predictions. With the exception of perhaps one small hiccup, the whole thing went smoothly, and I learned a lot as an audience member. read more

It has often been said that the art of computer programming is part managing complexity and part naming things. I contend that this is largely true with the addition of "and sometimes it requires drawing boxes." read more

You know you're a sysadmin if you are either knee-deep in system logs, constantly handling user errors, or carving out time to document it all along the way. Yesterday was Sysadmin Appreciation Day and we want to give a big "thank you" to our favorite IT pros. We've pulled together the ultimate list of tasks, resources, tools, commands, and guides to help you become a sysadmin superhero.

IBM has a long history of working with the open source community. Way back in 1999, IBM announced a $1billion investment in Linux. IBM is also credited for creating one of the most innovative advertisements about Linux. But IBM’s acquisition of Red Hat raised some serious and genuine questions around IBM’s commitment to Open Source and the future of Red Hat at the big blue.

Memcached is a free and open-source memory object caching systems that can be used to speed up your applications by temporarily storing information in memory. In this tutorial, we will explain how to install Memcached on Ubuntu 18.04 server.

Sysadmins spend a lot of time preventing and fixing problems. There are certainly times when a sysadmin becomes a hero, whether to their team, department, company, or the general public, though the people they "saved" from trouble may never even know. Enjoy these two stories from the community on sysadmin heroics. What does it mean to you? read more

Encryption, VPN and Android app support for Apple and Google refuseniks Jolla has updated Sailfish, the Linux-based mobile OS aimed at those who prefer a little less Android and Apple in their lives.…

WiBase’s extended temperature “WB-N211 Stingray AI Inference Accelerator” AI edge computer runs Linux on an Nvidia Jetson TX2. The Stingray, which is also available as a “WB-N211-B” baseboard, joins several other TX2-based WiBase AI systems. WiBase, a Taiwanese AI and vision analytics subsidiary of Wistron, announced that its WB-N211 Stingray AI Inference Accelerator will support […]

News briefs for July 26, 2019.

You might have encountered a few advertisements the past year trying to sell you a password manager. Some examples are LastPass, 1Password, or Dashlane. A password manager removes the burden of remembering the passwords for all your websites. No longer do you need to re-use passwords or use easy-to-remember passwords. Instead, you only need to […]

Steven Rostedt wanted to do a little housekeeping, specifically with the function tracing code used in debugging the kernel. Up until then, the kernel could enable function tracing using either GCC's -pg flag or a combination of -pg and -mfentry. In each case, GCC would create a special routine that would execute at the start of each function, so the kernel could track calls to all functions. ............

Sysadmins are the heartbeat of many open source projects around the world. What would we do without them?  So, once a year—or more if you're working on a team with a great outlook on life and positive culture—we take time out of our busy lives to say thank you. "Thanks for all the stress, overtime, and dedication to the mission(s), me!" —Jim Salter read more

In a Reddit Ask Me Anything (AMA), Red Hat CTO Wright dishes on open-source and the future of Red Hat products and technologies with IBM.

There are basically three types of people in the world: those who know little or nothing about bash job control, those who know enough to believe that it's nothing that they would ever use, and those who can just skim the rest of this post.

Kanboard is a free, open-source and self-hosted project management software that can be used to manage projects using Kanban methodology. You can visualize the work-flow, limiting work in progress and work efficiently from the Kanboard web interface.

Pine64 has opened $199 pre-orders on its open-spec, 14-inch Pinebook Pro laptop, which runs Linux on a Rockchip RK3399 and features 3x privacy switches. The Rock64 Rev 3, PineTab tablet, PinePhone should follow shortly. As promised in a July 5 blog announcement, Pine64 has opened pre-orders for $199 on its 14-inch Pinebook Pro laptop, the […]

Have you ever downloaded the source code for a popular software project that required you to type the almost ritualistic ./configure; make && make install command sequence to build and install it? If so, you’ve used GNU Autotools. If you’ve ever looked into some of the files accompanying such a project, you’ve likely also been terrified at the apparent complexity of such a build system. read more