QgsTask never executed

Question

I would like to run a QgsTask when I push a button in a Qgis plugin (3.10).
My task is a subclass similar to this example
In the main class of my plugin, I have added this (connected to the button that works) :
def myBtnAction(self) :
    from .my_task import MyTask
    task = MyTask('run my task', 20)
    QgsApplication.taskManager().addTask(task)

The task is never executed.

ThomasG77 · Answer

Did you try the standalone version running in PyQGIS Python console like below (clearly borrowed from your link and reindented)?
class MyTask(QgsTask):
    def __init__(self, description, flags):
        super().__init__(description, flags)
    def run(self):
        QgsMessageLog.logMessage('Started task {}'.format(self.description()))
        #print('crashandburn')
        return True

t1 = MyTask('waste cpu', QgsTask.CanCancel)
QgsApplication.taskManager().addTask(t1)

In my case, it "works". So what does MyTask from your from .my_task import MyTask looks like? Did you try to use your task code outside the plugin to find where the issue could be?

QgsTask never executed

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