# know

Published articles for know.

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## Temporal 101: Learn Temporal with Python

DevFeed: [Temporal 101: Learn Temporal with Python](<https://devfeed.tech/articles/temporal-101-learn-temporal-with-python-35998.md>)

Original publisher: [Read original article](<https://temporal.io/blog/temporal-101-learn-temporal-with-python>)

Author: Mason Egger

Published: 2023-07-07T04:00:00Z

Content type: release

Language: en

Sources: [Temporal Blog](<https://devfeed.tech/sources/temporal-blog.md>)

Topics: [Python](<https://devfeed.tech/topics/python.md>), [Learning](<https://devfeed.tech/topics/learning.md>)

Tags: [browser](<https://devfeed.tech/tags/browser.md>), [course](<https://devfeed.tech/tags/course.md>), [firefox](<https://devfeed.tech/tags/firefox.md>), [free](<https://devfeed.tech/tags/free.md>), [github](<https://devfeed.tech/tags/github.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [know](<https://devfeed.tech/tags/know.md>), [python](<https://devfeed.tech/tags/python.md>), [sdk](<https://devfeed.tech/tags/sdk.md>), [terminal](<https://devfeed.tech/tags/terminal.md>)

### AI overview

Temporal has released a free, self-paced Temporal 101 course for developers learning Temporal with Python. The course teaches fundamental concepts through written lessons, videos with transcripts, assessments, and hands-on exercises in a browser-based GitPod environment.

### Source excerpt

Get started with Temporal using Python in this free, self-paced course. Learn the basics through hands-on lessons at your own pace.

## Running Node.js in Docker for local development

DevFeed: [Running Node.js in Docker for local development](<https://devfeed.tech/articles/running-node-js-in-docker-for-local-development-31292.md>)

Original publisher: [Read original article](<https://nystudio107.com/blog/run-your-node-js-apps-buildchains-via-docker>)

Author: andrew@nystudio107.com (Andrew Welch)

Published: 2020-09-14T04:00:00Z

Content type: tutorial

Language: en

Sources: [nystudio107 | Articles on modern web development.](<https://devfeed.tech/sources/nystudio107-articles-on-modern-web-development.md>)

Topics: [Docker](<https://devfeed.tech/topics/docker.md>), [Node.js](<https://devfeed.tech/topics/node-js.md>), [Containers](<https://devfeed.tech/topics/containers.md>), [Development](<https://devfeed.tech/topics/development.md>), [Front end](<https://devfeed.tech/topics/frontend.md>)

Tags: [apps](<https://devfeed.tech/tags/apps.md>), [benefit](<https://devfeed.tech/tags/benefit.md>), [buildchains](<https://devfeed.tech/tags/buildchains.md>), [containers](<https://devfeed.tech/tags/containers.md>), [dependency](<https://devfeed.tech/tags/dependency.md>), [development](<https://devfeed.tech/tags/development.md>), [docker](<https://devfeed.tech/tags/docker.md>), [don-t](<https://devfeed.tech/tags/don-t.md>), [easy](<https://devfeed.tech/tags/easy.md>), [frontend](<https://devfeed.tech/tags/frontend.md>), [hassle](<https://devfeed.tech/tags/hassle.md>), [inside](<https://devfeed.tech/tags/inside.md>), [insights](<https://devfeed.tech/tags/insights.md>), [know](<https://devfeed.tech/tags/know.md>), [local](<https://devfeed.tech/tags/local.md>), [need](<https://devfeed.tech/tags/need.md>), [node-js](<https://devfeed.tech/tags/node-js.md>), [onboarding](<https://devfeed.tech/tags/onboarding.md>), [running](<https://devfeed.tech/tags/running.md>)

### AI overview

This tutorial explains how to run Node.js buildchains and applications in Docker containers during local development. It presents containerization as a way to isolate application dependencies, simplify onboarding, and reduce conflicts between projects.

### Source excerpt

You don't need to know Docker to benefit from running local dev Node.js buildchains & apps inside of Docker containers. You get easy onboarding, and less hassle.

## Deleting Objects in Core Data

DevFeed: [Deleting Objects in Core Data](<https://devfeed.tech/articles/deleting-objects-in-core-data-37498.md>)

Original publisher: [Read original article](<https://www.cimgf.com/2014/02/25/deleting-objects-in-core-data/>)

Author: Marcus Zarra

Published: 2014-02-25T21:11:07Z

Content type: opinion

Language: en

Sources: [Cocoa Is My Girlfriend](<https://devfeed.tech/sources/cocoa-is-my-girlfriend.md>)

Topics: [iOS](<https://devfeed.tech/topics/ios.md>), [Framework](<https://devfeed.tech/topics/framework.md>), [Exception](<https://devfeed.tech/topics/exception.md>), [notifications](<https://devfeed.tech/topics/notifications.md>)

Tags: [core-data](<https://devfeed.tech/tags/core-data.md>), [crash](<https://devfeed.tech/tags/crash.md>), [exception](<https://devfeed.tech/tags/exception.md>), [exceptions](<https://devfeed.tech/tags/exceptions.md>), [framework](<https://devfeed.tech/tags/framework.md>), [ios](<https://devfeed.tech/tags/ios.md>), [know](<https://devfeed.tech/tags/know.md>), [notifications](<https://devfeed.tech/tags/notifications.md>), [rants](<https://devfeed.tech/tags/rants.md>)

### AI overview

The article argues against avoiding deletion of Core Data managed objects or restricting deletion to application startup. It recommends planning for deletion, using Core Data's built-in change notifications or a custom observer, and avoiding access to objects after they have been deleted because behavior differs across iOS versions and can cause exceptions or crashes.

### Source excerpt

I very rarely speak out against another blog post. I find the resulting argument back and forth draining. However, there are exceptions and one occurred over the weekend. Brent Simmons has been blogging about his conversion of Vesper to a Core Data application. A recent post of his titled Core Data and Deleting Objects set [...]