xkb | Keyboard setup. -

I'm trying to deploy a Python script on Heroku that utilizes Selenium. I have my Python script file, Procfile, requirements.txt(created via pipfreeze), and runtime.txt files all created in my root directory. I've successfully deployed everything to Heroku, have installed the 2 necessary Chrome buildpacks, and set config variables for both paths, but when I try to execute heroku run python3 my_script.py on my command line, I receive an error message saying ImportError: No module named selenium.

My code works locally, but I cannot seem to get it to run on Heroku. I tried executing heroku run bash -> python3 -> import selenium to check to see if it was installed and it's not. My Procfile reads web: python3 my_script.py, my requirements.txt file includes selenium, and my rutime.txt file reads python-3.7.3 so I'm not sure what I'm missing here.

My goal is to use Heroku's scheduler to run my python file at intervals, but right now I can't even figure out how to run the code manually.

For reference of what the beginning of my_script.py looks like:

I'm trying to build a docker container on a Raspberry Pi 3B. I need to install gpac for MP4Box.

Dockerfile

I am trying to run testcafe with the testcafe-browser-provider-electron in headless mode on a debian docker container.

I keep getting

There is this QLineEdit with setText is set to a predefined value and there is a QDialog with QLabel in it which is supposed to show whatever is in the QLineEdit. The code below shows the situation.

I'm trying to write my own "keyboard driver" (without actually writing a kernel module), by grabbing the keyboard at what I assume is the lowest level of abstraction in userland: /dev/input/event*.

The following code does the grabbing, provided you change the first ocurrence of ioctl(fd, EVIOCGRAB, UNGRAB) to ioctl(fd, EVIOCGRAB, GRAB).

My ASP.Net Core application is able to connect to a postGres database using Docker and Docker compose successfully(please see Docker-Compose up output below). I am however not able to browse to either the ASP.Net Core application or adminer(Postgres client) on my docker containers, from my PC using the urls http://IP_AddressOfRunningDockerContainer:443 or http://IP_AddressOfRunningDockerContainer:8080 respectively.

What could I be missing?

Command to get IP address of container(and its output):

I write my pet project. At first, it was based on cmake and I set the path to qt libs from the console, e.g. cmake -DPATH_TO_QT:STRING=/home/user/Qt/5.11.1/gcc_64/ The variable PATH_TO_QT was declared as set(PATH_TO_QT "/path/to/your/Qt/" CACHE STRING "Path to Qt") With this configuration, my project worked very well.

However, I wanted to add in my project Conan Package Manager and I did it. My conanfile.txt:

Is xkb a part of xlib standard? Can I use it in my applications, without any problems on all the "xorg-driven" systems?

Whenever I start a python script that tries to access the keyboard, for example, with OpenCV's waitKey() method, I get the following error: