Two years ago, I wrote an article Docker tips for beginners. That’s my first time to learn docker. And after that, I had to move my attention on data crawlers, including Python, Scrapy, Selenium, Chrome Extension, Electron, etc. Today is the day when I am back to work backend again. The first lesson I am learning is how to setup Docker environment. Docket officially claims that docker engine can run the docker image on all platform, including Windows, Linux and Mac. For perosnal and small business usage, it could be free. But if you are working in big company, you have to pay attention on the license, especially for beginners. If you were installing some apps by mistake, it could cause you legal problems.

I moved my Joomla site to a new host powered by cPanel several days ago. Everything has been working smoothly till I find I cannot edit my post any more. Once I enter the article edition page, any operation will be result in 403 error.

Logging in Python is an old topic. It is quite important to check and debug Python programe, especially when there are something going wrong. In Linux, logging files are usually located in a special folder and rotated basing on time. Here is a powerful logging tool, loguru, a Python 3rd library. In this article, I will not cover it, but I recommend it if you are already familiar with the original Python logging system. Here, I will share some usual practices in my past Python projects.