matt harrison Profile picture
Jul 15, 2021 β€’ 11 tweets β€’ 3 min read
A lot of people ask about my teleprompter...

Here is a 🧡 🠷 Image
When #Covid19 kicked in, I lost a good deal of training business that didn't want to move from live to virtual training.

Rather than give up. I doubled down...
I invested in equipment and software so I could deliver the best virtual training possible @__metasnake__ πŸπŸ“ˆ
Audio and video are important, but this thread is about video.

I purchased a Canon M50 mirrorless camera and use it with OBS and Canon's webcam software.

amzn.to/2LQIy2V
I purchased a :

β—Œ Puluz tripod mount
β—Œ Pergear Tripod head
β—Œ Ulanzi Claw Camera Quick Release
β—Œ TKDY AC adapter
β—Œ Gen12 Magnetic USB Micro Cable

To mount the camera on a Vivo desktop mount arm.
Originally, I put the camera between my screens. Image
This worked, but inevitably I would look at the computer monitor to view who I'm talking to or the code I was screencasting...
Enter the teleprompter.

glidegear.net/products/glide…
I also bought a Lilliput Monitor (that can rotate that its screen)

amazon.com/LILLIPUT-1920x…
I can put Zoom on the monitor or use OBS to create a "Windowed Projector" on the monitor.
Finally, I created my own hood out of craft foam because the included hood dwarfed the camera and made it hard to adjust zoom, mode, etc. Image

β€’ β€’ β€’

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More from @__mharrison__

Oct 28, 2021
Let's explore the "any" and "all" built-in functions in Python.

A 🧡
First of all, I'll teach you how to fish in Python before giving you the fish. 🐟🎣

The built-in "help" function will give you documentation in Python. Make liberal use of it and reach out to it before ceding control to a search engine.
These are "aggregation" or "reducing" functions. They take a sequence and collapse it to a single value.

"any" returns if any value was truthy.
"all" returns if all values were truthy.

Most examples look like this:
Read 8 tweets
Oct 27, 2021
Here's a crazy piece of Python code (from @driscollis) illustrating how to calculate prime numbers below 1000 in a "functional" style.

How would I write this?

🧡

Functional programming like this can be great for minimizing lines of code. But it is also great for making your brain spin. Here is how I would initially write this (if I were fancy, I would use the Sieve of Eratosthenes):
Can we collapse this into fewer lines of code? Certainly, (the functional style already showed that) we can. One thing to realize is that lines 3-6 can be replaced with an any call:
Read 8 tweets
Oct 26, 2021
I'm frequently asked: Is it easy to get a tech job?

Probably not. It will require a degree (or a lot of hard work). People who say otherwise are probably selling you something.

1/
I've taught thousands of people Python over the years. Some pick it up quickly, others really struggle. That is why Universities have "weeder" courses. To sift out the strugglers.

2/
Does that mean you can't self-learn? No, but it will take a lot more work than just sitting back and watching YouTube.

3/
Read 5 tweets
May 18, 2021
This tweet obviously resonates with many.

I often get asked about debugging when teaching a course...

A 🧡

Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it.

-Kernighan's Law

🀯
When I teach programming, I emphasize that to me, the most important part is that the code is "readable."

You write code (once or twice), but it is read all the time. Optimize for what happens a lot.

Not:

😦 Brevity
😦 Cleverness
😦 Using all of the features
Read 13 tweets
Mar 17, 2021
I'm teaching a Fundamentals of Python class this week.

We talked about tuples, and there was some confusion as to their existence.

Certainly, you could live in a world without them, but...

🧡
First of all ... pronunciation.

You can say "two-pull" or "tuh-pull" (both are valid).
A big confusion is when to use a list or tuple?

My basic rule of thumb:

If you have items of the same type and care about the order or re-arranging it, you want a list.
Read 9 tweets
Jan 1, 2021
One of the most effective things I did for my career is probably the most difficult.

πŸ§΅πŸ‘‡
It is not difficult because it requires strength or knowledge, it is difficult because it requires will power.

I'm talking about writing a book. πŸ“š
Writing a book taught me a bunch of lessons about work, myself, and business. I would say it jumpstarted my career (even though I had been employed for over 13 years by that point). βš’πŸ§ 
Read 10 tweets

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