This repository contains the code used for the 2022-Feb-22 PyCharm Webcast Beginner Concurrency with Python asyncio.

The code in this repo is designed for use with Arista EOS network infrastructure. You could adapt it for your own use for other networking devices - left as an exercise for the User.

You will need to git-clone and install the project files directly as the repo is not deployed on PyPi. The project uses poetry, so you will need to create a Python3.8 virtualenv with poetry. Once created, you can install the files:

poetry install

You should then have a script called demo available in your virtualenv. You can verify via:

demo --help

Usage: demo [OPTIONS] COMMAND [ARGS]...

  Beginner-Concurency Demo CLI

Options:
  --version  Show the version and exit.
  --help     Show this message and exit.

Commands:
  find-host  Find switch-port where host with mac-addresss
  versions   Run inventory OS versions demo
  xcvrs      Run inventory transceivers demo

Before you try out the demo features you will need to export two variables into your enviornment for network device authentication:

• NETWORK_USERNAME - the login username value
• NETWORK_PASSWORD = the login password

You will also need to create a text-file called inventory.text that contains the list of devices, one per line. The demo must be run on a computer that has IP reachability to those devices and DNS for devices in the file.