Fixes #2639 (closed)
When running a Docker container with a Pitivi developer environment, passing the flag
-p 5678:5678 maps the container's debug port to the host. Then you can run
PITIVI_VSCODE_DEBUG=1 pitivi as usual, it will wait for a debugger to attach, and in VSCode you should be able to properly attach as expected.
Without this patch, VSCode tries to attach, gives no error, and immediately shows nothing running/attached.
I confirmed this works on my environment, using the Docker image from https://github.com/psybers/pitivi-dev-docker and running on VSCode 1.74.3.