Running GUI apps locally as root in a non-root session

There are instances when you need to run an X Window application. For me this is often running a terminator instance as root so that I can create tabs and split the window as still be root in each of those terminals.

In order for the root user to be able to connect to the X server you need to provide it with “credentials”. In this case it is on the same box and not over the network so the → Continue reading “Running GUI apps locally as root in a non-root session”

VS Code “Test result not found for:” When Running Tests for a Python Project [SOLVED]

I finally was able to get Visual Studio Code set-up correctly to run and debug unit and integration tests for a Python 3.8 project that I am working on (I’ll add a link to that post here once it is up).

After making some changes to the code and adding a test I got the following error when trying to debug the test:

Test result not found for: ./mylibs/integration_tests/myclient_integration_test.py::MyClientIntegrationTest::test_happy_path

? An odd error message, to be sure.

After a little → Continue reading “VS Code “Test result not found for:” When Running Tests for a Python Project [SOLVED]”

Compiling Python 3.8.x Under Linux

Yes, I know. 3.8.x? That’s an older version of Python but there are still a number of current applications and libs that require 3.8 as well as a number of distros that still have 3.8 as the most recent easily installable version. With that being said, the following is a quick how to on getting it compiled under both RedHat/CentOS/Almalinux and Debian based systems.

Install Dependencies

This assumes that you already have the “build-essentials” and kernel headers installed on the → Continue reading “Compiling Python 3.8.x Under Linux”

Using fc to Edit and Re-execute Bash Commands

I recently learned about the Bash built-in fc. It is a great tool that enables you to edit and re-execute commands from your bash history.

Oftentimes there is a command in your history that instead of just grepping through the history and then re-executing as-is you’ll want to make a modification or two. With fc you can first edit it in your favorite editor and then when closing the editor fc will execute the command.

For me, vim is my → Continue reading “Using fc to Edit and Re-execute Bash Commands”

Creating a Launch Config in VSCode to Debug a Python Invoke Script

I regularly use Python Invoke and Fabric for the automation of various tasks; from deploying code to developing my own set of tools for various projects. Following is an example on how to write a launch.json launch configuration for vscode so that you can step through the tasks.py code and debug it.

Assuming that you have created a virtual environment and pip installed invoke into it. And, assuming that you have defined a task in your tasks.py file as follows:→ Continue reading “Creating a Launch Config in VSCode to Debug a Python Invoke Script”

Using bq load Command to Load logicalType Partitioned Data into a BigQuery Table

Following is the syntax and bq load command that you need to issue if you want to load data in avro file into a partitioned BigQuery table based on avro field defined as a logicalType.

Given the following schema

{
  "type" : "record",
  "name" : "logicalType",
  "namespace" : "com.ryanchapin.tests",
  "fields" : [ {
    "name" : "id",
    "type" : [ "null", "string" ],
    "default" : null
  }, {
    "name" : "value",
    "type" : [ "null", "long" ],
    "default" : null
  }, 
Continue reading “Using bq load Command to Load logicalType Partitioned Data into a BigQuery Table”

Flush Commands to BASH History Immediately

I cannot take credit for figuring this one out. Original post is here.

TLDR; is to add the following to your ~/.bashrc

export PROMPT_COMMAND='history -a'

Following are the history configs that I use

######################################################################
shopt -s histappend
HISTSIZE=-1
HISTFILESIZE=-1
HISTCONTROL=ignoreboth
HISTTIMEFORMAT="[%F %T] "
export PROMPT_COMMAND='history -a'
######################################################################
Continue reading “Flush Commands to BASH History Immediately”

Setting Per File Type Tab Configurations in VSCode

If you would like to have different tab configurations (tabs or spaces) along with the number of tab chars for different file types you can update your user settings.

The first thing you need to do is figure out what the file type code thinks the file that you want to change is. Open the file in vscode and then look at the bottom right of your window. In my case, I’m looking at an avro schema (.avsc) file:

In → Continue reading “Setting Per File Type Tab Configurations in VSCode”