Question

如果我运行下面的thread_test.py代码，我在线程中的函数运行正常。但是，如果我用cx_Freeze编译它，那么它会在调用glob时挂起。它没有给出错误并且gui仍然保持响应，但线程似乎挂起（什么都不做）。除了glob之外，我还测试了其他几个函数，所以glob本身就是而不是这个问题。我尝试从多处理中添加freeze_support，即使我没有使用多处理，但这没有帮助。有什么可能导致这个的想法？它可能与使用Anaconda而不是vanilla python有关吗？

我意识到使用这样的日志可能不是线程安全的，但是对于这个演示它很好。

作为参考，我使用：

Windows 7企业版，Service Pack 1
Anaconda 4.2.0（Python 2.7.12）
cx_Freeze 5.0
PyQt5 5.6.0

thread_test.py：

from PyQt5 import QtWidgets
from PyQt5.QtWidgets import QApplication, QMainWindow
from PyQt5.QtCore import QThread, QObject, pyqtSignal, pyqtSlot

import sys
import time
import glob
import logging

log = logging.getLogger(__name__)
log.setLevel(logging.DEBUG)
log.addHandler(logging.StreamHandler())

class worker_object(QObject):
    finished = pyqtSignal()

    def __init__(self):
        super(self.__class__, self).__init__()
        log.info('2. Worker Object Initialized')

    @pyqtSlot()
    def run_thread(self):
        log.info('5.  Worker 1/5')
        time.sleep(0.5)
        log.info('    Worker 2/5')
        glob.glob('*.jpg')
        log.info('    Worker 3/5')
        time.sleep(0.5)
        log.info('    Worker 4/5')
        self.finished.emit()
        log.info('    Worker 5/5')

class test_window(QMainWindow):
    def __init__(self):
        super(self.__class__, self).__init__()
        log.info('1. Window Initialization (Started)')

        self.centralwidget = QtWidgets.QWidget(self)
        self.verticalLayout = QtWidgets.QVBoxLayout(self.centralwidget)

        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setText('Start!')
        self.verticalLayout.addWidget(self.pushButton)

        self.progressBar = QtWidgets.QProgressBar(self.centralwidget)
        self.progressBar.setRange(0,1)
        self.verticalLayout.addWidget(self.progressBar)

        self.setCentralWidget(self.centralwidget)
        self.statusbar = QtWidgets.QStatusBar(self)
        self.setStatusBar(self.statusbar)

        self.pushButton.clicked.connect(self.execute)

        # Setup threading
        self.thread = QThread()
        self.worker_object = worker_object()
        self.worker_object.moveToThread(self.thread)
        self.worker_object.finished.connect(self.onFinished)
        self.thread.started.connect(self.worker_object.run_thread)
        log.info('3. Window Initialization (Finished)')

    def onFinished(self):
        self.thread.quit()
        self.statusbar.showMessage('Finished!')
        self.setEnabled(True)
        self.progressBar.setRange(0,1)
        log.info('6.  Thread Finished')

    def execute(self):
        self.statusbar.showMessage('Working')
        self.setEnabled(False)
        self.progressBar.setRange(0,0)
        log.info('4.  Thread Starting')
        self.thread.start()

if __name__ == '__main__':
    app = QApplication(sys.argv)
    form = test_window()
    form.show()
    app.exec_()

setup.py：

from cx_Freeze import setup, Executable

buildOptions = dict(packages = [], excludes = [], includes = [], include_files = [])

executables = [Executable('thread_test.py', base=None)]

setup(name='thread_test',
      version = '1.0',
      description = 'Threading Test',
      options = dict(build_exe = buildOptions),
      executables = executables)

Answer 1

为了它的价值，我刚刚安装了Anaconda3（带有Python 3.5.2的Anaconda 4.2.0）并安装了cx_Freeze。使用它，一切正常。所以也许这是python 2.7上的cx_Freeze中的一个错误，我不确定。

cx_Freeze与PyQt5和线程

1 个答案: