PyQt5: pop-up progressbar using QThread
问题 How can I implement a progress bar in a pop-up window that monitors the progress of a running function from a so-called Worker class (i.e. time/CPU-consuming task) by means of a QThread ? I have checked countless examples and tutorials, but the fact that the progressbar shows up in a pop-up window seems to make everything harder. I believe what I want is a rather simple thing but I keep failing at it and I ran out of ideas. I have an example of what I am trying to achieve, which is based on