Skip to content

Bug:Debug didn't work in Qthread #697

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
Aj-whxy opened this issue Apr 13, 2025 · 0 comments
Open

Bug:Debug didn't work in Qthread #697

Aj-whxy opened this issue Apr 13, 2025 · 0 comments
Labels
triage-needed Needs assignment to the proper sub-team

Comments

@Aj-whxy
Copy link

Aj-whxy commented Apr 13, 2025

Description:

When I use Qt for Pyside6, I open a Qthread sub thread in the main thread and add a breakpoint inside the sub thread, but Python debugger does not enter the sub thread,it just didn't work

Origin Code:
main.py:

import sys
from PySide6.QtWidgets import QApplication, QMainWindow, QPushButton, QTextEdit, QVBoxLayout, QWidget
from PySide6.QtCore import Qt
from worker_thread import WorkerThread

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("QThread Debug Test")
        self.setGeometry(100, 100, 400, 300)
        
        # 创建中央部件和布局
        central_widget = QWidget()
        self.setCentralWidget(central_widget)
        layout = QVBoxLayout(central_widget)
        
        # 创建按钮
        self.start_button = QPushButton("Start Thread")
        self.start_button.clicked.connect(self.start_thread)
        layout.addWidget(self.start_button)
        
        # 创建文本显示区域
        self.text_edit = QTextEdit()
        self.text_edit.setReadOnly(True)
        layout.addWidget(self.text_edit)
        
        # 创建工作线程
        self.worker_thread = None
    
    def start_thread(self):
        if self.worker_thread is None or not self.worker_thread.isRunning():
            self.worker_thread = WorkerThread()
            self.worker_thread.message_signal.connect(self.update_text)
            self.worker_thread.start()
            self.text_edit.append("Thread started...")
    
    def update_text(self, message):
        self.text_edit.append(message)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec()) 

sub_thread.py:

from PySide6.QtCore import QThread, Signal
import time

class WorkerThread(QThread):
    message_signal = Signal(str)
    
    def __init__(self):
        super().__init__()
        self.running = True
    
    def run(self):
        count = 0
        while self.running and count < 10:
            count += 1
            self.message_signal.emit(f"Count: {count}")
            time.sleep(1)  # 模拟耗时操作
        
        self.message_signal.emit("Thread finished!")
    
    def stop(self):
        self.running = False 

Where is the sub-thread?

Image

Where is the breakpoint?

Image

What's the Performance?
Set the breakpoint and push the button,then you'll find that Python Debugger didn't work in the workthread(sub-thread)!

Image

Image

@github-actions github-actions bot added the triage-needed Needs assignment to the proper sub-team label Apr 13, 2025
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
triage-needed Needs assignment to the proper sub-team
Projects
None yet
Development

No branches or pull requests

1 participant