为什么 Pycharm 调试器不在主线程外的断点处停止？

Question

我正在使用 PyCharm 2016.2.3（内部版本#PY-162.1967.10）。我无法让调试器在主线程外的任何断点处停止，无论断点的挂起属性是 All 还是 Thread；或者如果那是整个程序中唯一的断点。线程是通过将 QObject 移动到 QThread 中来实现的。这是显示问题的简单代码。辅助线程中任意位置的断点（在 Master.do() 或 Worker.run() 内）将不会命中。

import sys
from PyQt5.QtCore import QCoreApplication, QObject, QThread, pyqtSignal, pyqtSlot


class Worker(QObject):
    """
    Generic worker.
    """
    start = pyqtSignal(str)
    finished = pyqtSignal()

    def __init__(self, function):
        QObject.__init__(self)
        self._function = function
        self.start.connect(self.run)

    @pyqtSlot()
    def run(self):
        #TODO Breakpoints inside this method will not be hit.
        self._function()
        self.finished.emit()


class Master(QObject):
    """
    An object that will use the worker class.
    """

    def __init__(self):
        QObject.__init__(self)

    def do(self):
        #TODO Breakpoints inside this method will not be hit.
        print("All done.")
        QCoreApplication.quit()


def main():
    app = QCoreApplication(sys.argv)

    master = Master()
    worker = Worker(master.do)

    thread = QThread()
    worker.moveToThread(thread)
    thread.started.connect(worker.run)

    # Terminating thread gracefully, or so.
    worker.finished.connect(thread.quit)
    worker.finished.connect(worker.deleteLater)
    thread.finished.connect(thread.deleteLater)

    thread.start()

    sys.exit(app.exec_())


if __name__ == "__main__":
    main()

Answer 1

在这里找到答案：

基本上，我必须在启动后立即导入 pydevd 并在线程中添加以下内容： pydevd.settrace（暂停=假，trace_only_current_thread=真）

为什么 Pycharm 调试器不在主线程外的断点处停止？

Why is Pycharm debugger not stopping at a breakpoint outside the main thread?

multithreading

debugging

pyqt

pycharm

breakpoints