#78 Setting Expectations for Open Source Participation

Python Bytes - A podcast by Michael Kennedy and Brian Okken - Luni

“Both for and while loops in Python also take an optional else suite (like the if statement and the try statement do), which executes if the loop iteration completes normally. In other words, the else suite will be executed if we don’t exit the loop in any way other than its natural way. So, no break statements, no return statement, or no exceptions being raised inside the loop.”
Why? So you don’t have to invent a flag to indicate something wasn’t found if you are using the loop to search for something.

https://libraries.io/
- Find out what your dependencies are!
- Look into https://tidelift.com/

We've had type annotations for awhile
When and why is sometimes unclear
- Lack of types an issue sometimes, especially annoying while learning new APIs or diving into a new large codebase, and made me completely reliant on documentation.
- Optional:
  - You can’t break the code by adding them
  - They have no effect performance-wise
  - You may add them only where you see fit
Straightforward benefits
- Employ static code analysis to catch type errors prior to runtime
- Cleaner code/the code is self-documenting: “don’t use a comment when you can use a function or a variable”, we can now say “don’t use comments to specify a type, when you can use type annotation”
The other benefit (it's massive!): Code completion

Or Pay for Open Source with Kindness
Brett Cannon’s morning talk this last Sunday at PyCon 2018
This talk (or a variation of it and it’s content) is essential material for anyone working with open source.
Everything in open source has a cost whether it’s time, effort, or emotional output.
Open source should be a series of unsolicited kindnesses.
Be open, considerate, and respectful
Remember most of this runs on volunteer time and that people have lives.
Guidelines for communicating online:
- Assume you are asking for a favor.
- Assume your boss will read what you say.
- Assume your family will read what you say.

Kojo #5:

Python Community Events
- Michael and I (along with Trey Hunner) helped lead a New Attendee Orientation
- Join your local Python community
- Be kind to your fellow Pythonistas

Michael #6: ngrok

ngrok exposes local servers behind NATs and firewalls to the public internet over secure tunnels.
Public URLs for testing on mobile devices, testing your chatbot, SSH access to your Raspberry Pi, sharing your local dev work on full stack web apps.
Just a commandline away
My use case: Course app development
Features:
- Secure Tunnels
- Request Inspection
- Fast (HTTP 2)

Extras and our news:

Michael:

Live recording video is out: https://youtu.be/s9uUSQvrIaE
Now up to 8 video servers around the world, Japan, Sao Paulo, and Mumbai are the latest. Based on the systemd thing we discussed way back when (episode 54)