为什么 Pycharm 调试器不在主线程外的断点处停止？ [复制]答案

【问题标题】：Why is Pycharm debugger not stopping at a breakpoint outside the main thread? [duplicate]为什么 Pycharm 调试器不在主线程外的断点处停止？ [复制]
【发布时间】：2017-03-08 14:07:03
【问题描述】：

我正在使用 PyCharm 2016.2.3（内部版本 #PY-162.1967.10）。无论断点的挂起属性是全部还是线程，我都无法让调试器在主线程外的任何断点处停止；或者如果这是整个程序中唯一的断点。线程是通过移动到 QThread 中的 QObject 来实现的。这是一个显示问题的简单代码。辅助线程中的任何位置（Master.do() 或 Worker.run() 内部）的断点都不会被命中。

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()

【问题讨论】：

标签： multithreading debugging pyqt pycharm breakpoints

【解决方案1】：

在这里找到答案：Not working python breakpoints in C thread in pycharm or eclipse+pydev

基本上，我必须导入 pydevd 并在启动后立即在线程中添加以下内容： pydevd.settrace(suspend=False, trace_only_current_thread=True)

【讨论】：