Lets you run your Python code as you type it. Still in pre-release, thanks for testing.
Recent change notes
The fix for 2.19.1 worked in some scenarios, but not all. Wrap it in a read action.
General usage instructions
Open any Python file, and run it. From the Run menu, choose Start Live Coding. You should see an extra panel on the right that shows the results of running your code. To run your code under a unit test or other script, first run the test or other script. Then open the file you want for live coding, open the Run menu, and choose Start Live Coding. Whichever run configuration is selected in the dropdown will drive the live coding.