Tag: Python

Flask PyWebCamWebMonitor Web App

A couple months ago I made a Python-Vue app ( Flask PyWebCamWebMonitor ) for controlling webcams(live view/record/stream) attached to a Linux host.

It’s pretty straight forward you use pip3 to install it then you install it as a system service or you start it manually with a command that is registered on the system automatically after you installed the python package.

When I first released it I tested it on a Linux X86 host but my intention was to make the app work even on the smallest dev boards, so a few days ago I tried to install it on orange pi zero.

As expected I encountered some problems first, the problem is that installing NumPy which is a dependency of OpenCV which is a dependency of my app, was complicated because the NumPy was not available for arm devices and when you tried to install it from building it you ran out of memory and the kernel killed the building process, you can activate a swap, and increase your /tmp size to overcome these limitations but it is simple just to install NumPy from the APT repo with apt install python3-NumPy, that you don’t have to needlessly wait. View full article

Linux Folder / Folders Backup on Yandex

Ok so a little while ago I made a Linux Yandex python script for backing MySQL databases and sync them on Yandex Disk, so if I already did that I thought I should use a part of that script and make a backup script for folders.

Most of the script is self-explanatory, all you have to do is to change the variables before the starting of the class keyword for your own needs. I put some comments that will better explain what you should define in each variable. Most of them are either of type string or number, just one is a bit different is a list of x lists of a 3 element list. View full article

MySQL Backup on Yandex Disk with Cron

I wrote a very small python script that works in conjunction with another MySQL backup script to sync your backup on the Yandex disk service.

First, in order to do this, you should have a Yandex client installed. You can get the packages from the Yandex repo at http://repo.yandex.ru/yandex-disk/ .

More specific in Debian/ubuntu case just do a:

wget http://repo.yandex.ru/yandex-disk/yandex-disk_latest_amd64.deb

After that install the Yandex Console client as usual doing:

dpkg -i yandex-disk_latest_amd64.deb

After installing the package, basic Yandex commands should be available(commands like yandex-disk start, yandex-disk sync, and others).
The script uses the yandex-disk commands.

Next, you should set up your Yandex client with the command Yandex setup. View full article