chuck black

Software Engineer, Networking, Teaching, SDN

[chuck black @chuckablack]

@swadesh_khan1 @davidbombal ... In a nutshell, SDN started as completely revolutionary, using OpenFlow. Then Cisco came into the picture and expanded the definition to use any protocol e.g. NETCONF in a software-based manner. Nowadays anything that changes config info or files on devices calls itself "SDN".

[chuck black @chuckablack]

Thanks to all of you who responded to my poll regarding how you are doing in learning Python!

I want to encourage you to stick with it! So here's a video to show what you'll learn from taking the 52-weeks-of-python course.

here: https://t.co/ZR2bwqNxUY
@davidbombal #Python

[chuck black @chuckablack]

@swadesh_khan1 @davidbombal ... if you are wanting to know what it was originally, and how it has evolved, I'm obliged to recommend my book (I'm co-author), called "SDN: A Comprehensive Approach". You'll get the history of SDN, and its evolution to almost where we are today... (more)

[chuck black @chuckablack]

@mad0xs @davidbombal If you have the time, there's no reason not to do both. But, if you only have time for one, it may be best to choose which direction you most want to pursue - network engineer? Or programmer?

And FWIW you can always choose one, and then come back later and pick up the other.

[chuck black @chuckablack]

For those of you who vowed in 2022 to learn Python programming, how is it going?

We are a month into 2022, so consider this to be your nerdy conscience speaking, checking up on you.🤓

@davidbombal #Python

So, how is learning Python going?

[chuck black @chuckablack]

@_ipengineer So sorry to hear that David. Wishes for a speedy recovery and good health to those around you!

[chuck black @chuckablack]

@cdmartinjr_jr @davidbombal My pleasure Charles. And thanks for the comments, it is ones like this that keep me encouraged to create content. 🤓

[chuck black @chuckablack]

In quokka-prime-from-scratch, I'm beginning to discuss using a database.

If you are interested in a fuller look at Python and databases, check out my 52-weeks-of-python database lessons, which begin at week 42.

check it out: https://t.co/ZaYpPkbGJc
@davidbombal #Python

[chuck black @chuckablack]

The next quokka-prime-from-scratch lesson is available; we begin to add DB functionality to our implementation.

We touch on installation of Mongo, on running quokka-prime with DB, and begin looking at quokka DB code.

check it out: https://t.co/sDDc59g8Wa
@davidbombal #Python

[chuck black @chuckablack]

The next 'explainer' lesson is available, on the software design pattern called "pub-sub".

If you think "pub-sub" is a sandwich you get at a local watering hole, this lesson might be for you.

check it out: https://t.co/0KiRjdoLLF
@davidbombal #Python

[chuck black @chuckablack]

@swadesh_khan1 @davidbombal After 52 weeks, you'll be able to:

- write Python at an intermediate/advanced level
- use it for networking tasks
- use it for REST APIs
- use it with databases
- use it with JSON, XML, YAML, etc
- ... and more

So IMO you will be well prepared to do network automation.

[chuck black @chuckablack]

The next "explainer" lesson is available; the topic is "separation of concerns".

Sounds complicated but it isn't, and once you've learned what it is, you can impress people when you use that phrase at parties. 🤓

check it out: https://t.co/auRsOOzj35
@davidbombal #Python

[chuck black @chuckablack]

Thinking of learning Python in 2022?

You could do worse that to go through my training courses, all available on YouTube for free.

100+ videos, including:
- a 52+ week course on Python
- 'quokka' (networking app) walkthroughs

https://t.co/SLTIFw212A
@davidbombal #Python

[chuck black @chuckablack]

@swadesh_khan1 @davidbombal If you check out my youtube channel, you will see a whole lot of content there, related to what you are interested in.

Here's a link to my channel:
https://t.co/SLTIFw212A

[chuck black @chuckablack]

@swadesh_khan1 @davidbombal Yes, I think I do just that in the 52-weeks-of-python course. I teach all about lists and dictionaries (the main Python data structures), and then I show how they can be used when dealing with networks and networking devices.

[chuck black @chuckablack]

Hey Folks! The next quokka-prime-from-scratch video is available, covering the code details of service monitoring. This includes:

- Classes (OOP) for monitoring
- Concurrency (threadpools)
- Command line arguments

check it out: https://t.co/RnnnC3HEz3
@davidbombal #Python

[chuck black @chuckablack]

Here's the thing: if your ambition is only to write small scripts, no worries - you don't need this topic.

But if you want to understand software, and how it is built at a professional level - well, you 100% need this topic.

https://t.co/iK7OM9aQAQ
@davidbombal #Python

[chuck black @chuckablack]

The next 'explainer' video is published, on the topic of software design and the idea of creating "loosely coupled" applications.

I show how this design allowed me to add Java and Go monitoring code to quokka-prime.

check it out: https://t.co/iK7OM9aQAQ
@davidbombal #Python

[chuck black @chuckablack]

I'm looking at the paltry number of retweets and hearts here. "Loosely coupled" maybe isn't a hot or well-understood subject.

But if you want to grow to become a real software developer, YOU NEED TO UNDERSTAND THIS TOPIC.

So my advice: check it out.
@davidbombal #Python