Thanks @mikael, I figured out the problem. I was debugging on an iPad without GPS, so while it returns lat/lon based on wifi, it doesn't return speed. When I tried the same code on an iPhone with GPS it also returns speed. I guess it wouldn't make much sense to derive speed from the wifi based location.
Welcome!
This is the community forum for my apps Pythonista and Editorial.
For individual support questions, you can also send an email. If you have a very short question or just want to say hello — I'm @olemoritz on Twitter.
