green-threads

Say for example that I have a Runnable called RunnableA that does something. I also have a Runnable called RunnableB that does something else. Is there a way that I can combine these two Runnables someway so that they will run in the same thread? The second part of the question is if this is possible, can I then specify the order that they will run in? EDIT!: The reason why I wanted to do this was because I need to run code on the EDT but some of the other code needs to be run on another thread. Please take a look at the code below. Something like this public final class CompoundRunnable

As Wikipedia states : Green threads emulate multi-threaded environments without relying on any native OS capabilities, and they are managed in user space instead of kernel space, enabling them to work in environments that do not have native thread support. Python's threads are implemented as pthreads (kernel threads) , and because of the global interpreter lock (GIL), a Python process only runs one thread at a time. [ QUESTION ] But in the case of Green-threads (or so-called greenlet or tasklets), Does the GIL affect them? Can there be more than one greenlet running at a time? What are the

I'm writing a web UI for data analysis tasks. Here's the way it's supposed to work: After a user specifies parameters like dataset and learning rate , I create a new task record , then a executor for this task is started asyncly (The executor may take a long time to run.), and the user is redirected to some other page. After searching for an async library for python , I started with eventlet , here's what I wrote in a flask view function: db.save(task) eventlet.spawn(executor, task) return redirect("/show_tasks") With the code above, the executor didn't execute at all. What may be the problem