How can I resolve the 'TypeError: 'list' object is not callable' error in this threaded pyside code that seems to work fine in a similar case?

Question

我的错误的完整回溯是：

> python zthreadtest_tjedit.py

None

Traceback (most recent call last):

File "zthreadtest_tjedit.py", line 17, in run self.function()

TypeError: 'list' object is not callable

很抱歉，这段代码有点特定于系统，可能不会作为大多数人的可执行示例。希望该解决方案足够简单，可以让某人立即看到。如果您不是使用当前导入的 zpool 的运行 zfs，而是在安装了 weir.zfs 模块的 *nix 平台上，它将 return 一个包含非线程代码的空列表启用（请参阅代码中的注释以切换线程）。启用线程模块后，它会抛出如上所示的错误。

令我困惑的是，来自 Jo Plaete (https://joplaete.wordpress.com/2010/07/21/threading-with-pyqt4/) 的第二段代码运行没有错误，我只是根据需要修改了这段代码。编辑：这个导致错误的差异可能与我的代码中使用的列表对象有关，而不是她的，但我仍然需要让我的工作。

我的问题是：如何解决我的错误以使我的线程模块正确运行？

这看起来很简单，但我完全被难住了。如此之多以至于这是我在任何帮助论坛上发布的第一个问题！我希望我已经正确地提出了我的问题，我很感激任何帮助。

我的代码，来自更大的 pyside gui 程序：

import PySide, sys
from PySide import QtCore, QtGui
from PySide.QtCore import *
from PySide.QtGui import *
import re, subprocess, threading
from weir import zfs

class WorkerThread(QThread):
    def __init__(self, function):
        QThread.__init__(self)
        self.function = function

    def __del__(self):
        self.wait()

    def run(self):
        self.function()
        return


class MainZ(QMainWindow):
    def __init__(self):
        super(MainZ, self).__init__()
        # print(self)
        # imported_pools = self.get_imported() # No threading
        imported_pools = self.thread_test()  # Use threading module

        print(imported_pools)

    def thread_test(self):
        self.threader = WorkerThread(self.get_imported())
        self.threader.start()

    def get_imported(self):
        pool_string = subprocess.getoutput(
            'zpool list |grep -v ^NAME.*SIZE.*ALLOC |grep -o ^[a-Z0-9]*')
        imported_pools = re.split(r'\s *', pool_string)
        return imported_pools


app = QApplication(sys.argv)
form = MainZ()
app.exec_()

我从 Jo Plaete 建模的代码对我没有错误：

import sys, time
from PySide import QtCore, QtGui

class GenericThread(QtCore.QThread):
 def __init__(self, function, *args, **kwargs):
  QtCore.QThread.__init__(self)
  self.function = function
  self.args = args
  self.kwargs = kwargs

 def __del__(self):
  self.wait()

 def run(self):
  self.function(*self.args,**self.kwargs)
  return

class MyApp(QtGui.QWidget):
 def __init__(self, parent=None):
  QtGui.QWidget.__init__(self, parent)
  self.setGeometry(300, 300, 280, 600)
  self.setWindowTitle('threads')
  self.layout = QtGui.QVBoxLayout(self)
  self.testButton = QtGui.QPushButton("test")
  self.connect(self.testButton, QtCore.SIGNAL("released()"), self.test)
  self.listwidget = QtGui.QListWidget(self)
  self.layout.addWidget(self.testButton)
  self.layout.addWidget(self.listwidget)

 def add(self, text):
  """ Add item to list widget """
  print("Add: " + text)
  self.listwidget.addItem(text)
  self.listwidget.sortItems()

 def addBatch(self,text="test",iters= 5,delay=0.2):
  """ Add several items to list widget """
  for i in range(iters):
   time.sleep(delay) # artificial time delay
   self.add(text+" "+str(i))

 def test(self):
  self.listwidget.clear()
  self.genericThread = GenericThread(
   self.addBatch,"from generic thread ",delay=0.3)
  self.genericThread.start()


# run
app = QtGui.QApplication(sys.argv)
test = MyApp()
test.show()
app.exec_()

Answer 1

    self.threader = WorkerThread(self.get_imported())

应该阅读

    self.threader = WorkerThread(self.get_imported)

创建线程时，你想传递函数本身，而不是调用函数的结果（这是一个列表）。

How can I resolve the 'TypeError: 'list' object is not callable' error in this threaded pyside code that seems to work fine in a similar case?

How can I resolve the 'TypeError: 'list' object is not callable' error in this threaded pyside code that seems to work fine in a similar case?

python

multithreading

pyside

qthread