所以 - 这是我的果酱。我是Python的新东西（即几天），并且在GUI上为我一直运行的一组python脚本取得了一些相当不错的进展。它基本上构建了我的音乐收藏数据库。当我在命令行运行它时，它做了一个很棒的工作。我认为这是学习python的好方法 - 为这件事构建一个前端。
所以 - 以下DOES实际上对我有用。当扫描开始工作时，扫描/更新按钮将保持“关闭”状态时遇到问题。我了解到，是的，我需要多线程来获取STDOUT的输出到下面的self.LogView。这甚至不起作用。我之前发布过它并且链接到网络上的另一个教程，但我只是没有超越这个并且变得绝望。亲爱的Stackflow.com - 让我免于疯狂。如果你可以做下面的工作，那么我可以对你所做的事情进行逆向工程，至少因为教程过于简化而且，是的，我在我的头脑中。
下面的重点是：
proc = subprocess.Popen([scanCMD],shell=True,stdout=subprocess.PIPE)
for line in proc.stdout:
wx.CallAfter(self.LogWindow.AppendText(line))
按钮def：
def bt_ScanUpdateClick(self, event):
Chow fling a hail mary
#!/usr/bin/python
################################################################################
# myGUI
################################################################################
# THIS WORKS, BUT DOES NOT MULTITHREAD!
################################################################################
import wx
from wxPython.wx import *
import os
import subprocess
import threading
class myGUI(wx.Frame):
def __init__(self, parent, title):
super(myGUI, self).__init__(parent, title=title,
size=(450, 245)) #360 for logwindow (see below)
panel = wx.Panel(self)
sizer = wx.GridBagSizer(6, 5)
self.currentDirectory = os.getcwd()
# [0] Main Database Text, Entry and Browse Button --------------------------
label_MainDatabase = wx.StaticText(panel, label="Database:")
sizer.Add(label_MainDatabase, pos=(0, 0), flag=wx.LEFT|
wx.ALIGN_CENTER_VERTICAL, border=10)
self.tc_MainDatabase = wx.TextCtrl(panel)
sizer.Add(self.tc_MainDatabase, pos=(0, 1), span=(1, 4), flag=wx.TOP|
wx.EXPAND|wx.ALIGN_CENTER_VERTICAL)
bt_MainDatabase = wx.Button(panel, label="Browse...")
sizer.Add(bt_MainDatabase, pos=(0, 5), flag=wx.LEFT|wx.RIGHT|
wx.ALIGN_CENTER_VERTICAL, border=10)
bt_MainDatabase.Bind(wx.EVT_BUTTON, self.bt_MainDatabaseClick,
bt_MainDatabase)
# --------------------------------------------------------------------------
# [1] Paths to scan for new Music ------------------------------------------
self.sb_FoldersToScan = wx.StaticBox(panel, label="Folders to Scan:", size=(200,100))
folderBoxSizer = wx.StaticBoxSizer(self.sb_FoldersToScan, wx.VERTICAL)
self.multiText = wx.TextCtrl(panel, -1,"",size=(300, 100), style=wx.TE_MULTILINE|wx.TE_READONLY)
self.multiText.SetInsertionPoint(0)
folderBoxSizer.Add(self.multiText, flag=wx.EXPAND)
sizer.Add(folderBoxSizer, pos=(1, 0), span=(1, 6), flag=wx.EXPAND|wx.TOP|wx.LEFT|wx.RIGHT, border=10)
bt_FoldersToScanAdd = wx.Button(panel, label="Add")
bt_FoldersToScanClear = wx.Button(panel, label="Clear")
# --------------------------------------------------------------------------
# [2] Buttons to Add Folder, Clear Scan Area -------------------------------
sizer.Add(bt_FoldersToScanAdd, pos=(2,0), span=(1,2), flag=wx.LEFT|wx.RIGHT|
wx.ALIGN_CENTER_VERTICAL, border=10)
bt_FoldersToScanAdd.Bind(wx.EVT_BUTTON, self.bt_FoldersToScanAddClick, bt_FoldersToScanAdd)
sizer.Add(bt_FoldersToScanClear, pos=(2,5), flag=wx.LEFT|wx.RIGHT|
wx.ALIGN_CENTER_VERTICAL, border=10)
bt_FoldersToScanClear.Bind(wx.EVT_BUTTON, self.bt_FoldersToScanClearClick, bt_FoldersToScanClear)
# --------------------------------------------------------------------------
# [3] Separator line -------------------------------------------------------
hl_SepLine1 = wx.StaticLine(panel, 0, (250, 50), (300,1))
sizer.Add(hl_SepLine1, pos=(3, 0), span=(1, 6), flag=wx.EXPAND, border=10)
# --------------------------------------------------------------------------
# [4] Add Scan Options and Scan Button -------------------------------------
bt_ScanUpdate = wx.Button(panel, label="Scan/Update")
bt_ScanUpdate.Bind(wx.EVT_BUTTON, self.bt_ScanUpdateClick, bt_ScanUpdate)
bt_ScanRepair = wx.Button(panel, label="Repair")
bt_ScanRepair.Bind(wx.EVT_BUTTON, self.bt_ScanRepairClick, bt_ScanRepair)
self.ck_ScanVerbose = wx.CheckBox(panel, label="Verbose")
self.ck_ScanLog = wx.CheckBox(panel, label="Log")
sizer.Add(bt_ScanUpdate, pos=(4,0), span=(1,2), flag=wx.LEFT|wx.RIGHT|wx.ALIGN_CENTER_VERTICAL, border=10)
sizer.Add(self.ck_ScanVerbose, pos=(4,2), flag=wx.LEFT|wx.RIGHT|wx.ALIGN_CENTER_VERTICAL, border=10)
sizer.Add(self.ck_ScanLog, pos=(4,4), flag=wx.LEFT|wx.RIGHT|wx.ALIGN_CENTER_VERTICAL, border=10)
sizer.Add(bt_ScanRepair, pos=(4,5), span=(1,2), flag=wx.LEFT|wx.RIGHT|wx.ALIGN_CENTER_VERTICAL, border=10)
# --------------------------------------------------------------------------
# [5] Separator line ------------------------------------------------------
hl_SepLine2 = wx.StaticLine(panel, 0, (250, 50), (300,1))
sizer.Add(hl_SepLine2, pos=(5, 0), span=(1, 6), flag=wx.EXPAND, border=10)
# --------------------------------------------------------------------------
# [6] Output/Log Box -------------------------------------------------------
self.LogWindow = wx.TextCtrl(panel, -1,"",size=(100, 100), style=wx.TE_MULTILINE|wx.TE_READONLY)
self.LogWindow.SetInsertionPoint(0)
sizer.Add(self.LogWindow, pos=(6,0), span=(1,6), flag=wx.EXPAND|wx.LEFT|wx.RIGHT|wx.ALIGN_CENTER_VERTICAL, border=10)
# DEBUG
self.multiText.Value = "~/Network/Pictures/Test"
sizer.AddGrowableCol(2)
panel.SetSizer(sizer)
self.Centre()
self.Show()
def bt_MainDatabaseClick(self, event):
# Create a list of filters
filters = 'All files (*.*)|*.*|Text files (*.db)|*.db'
dialog = wxFileDialog ( None, message = 'Select Database File...',
wildcard = filters, style = wxOPEN )
# Open Dialog Box and get Selection
if dialog.ShowModal() == wxID_OK:
selected = dialog.GetFilenames()
for selection in selected:
self.tc_MainDatabase.Value = selection
dialog.Destroy()
def bt_FoldersToScanAddClick(self, event):
dialog = wx.DirDialog(self, "Add a Directory...", style=wx.DD_DEFAULT_STYLE)
if dialog.ShowModal() == wx.ID_OK:
self.multiText.Value += "%s" % dialog.GetPath() + "\n"
dialog.Destroy()
def bt_FoldersToScanClearClick(self, event):
self.multiText.Value = ""
def bt_ScanUpdateClick(self, event):
self.SetSizeWH(450,360)
thread = threading.Thread()
thread.setDaemon(True)
thread.start()
## DEBUG
self.tc_MainDatabase.Value = "test.db"
if self.tc_MainDatabase.Value == "":
self.LogWindow.Value += "ERROR:\tNo database name selected!\n"
else:
scanCMD = "./scan -d " + self.tc_MainDatabase.Value + " "
numLines=0
maxLines=(int(self.multiText.GetNumberOfLines()))
if self.multiText.GetLineText(numLines) == "":
self.LogWindow.Value += "ERROR\tNo folder selected to scan!\n"
else:
self.LogWindow.Value += "Running Scan...\n\n"
while (numLines < maxLines):
scanCMD += str(self.multiText.GetLineText(numLines)) + " "
numLines += 1
self.LogWindow.Value += scanCMD
proc = subprocess.Popen([scanCMD],shell=True,stdout=subprocess.PIPE)
for line in proc.stdout:
wx.CallAfter(self.LogWindow.AppendText(line))
# p = subprocess.Popen([scanCMD],shell=True,stdout=subprocess.PIPE)
# self.LogWindow.Value += p.stdout.readline()
def bt_ScanRepairClick(self, event):
print "Repair clicked"
if __name__ == '__main__':
app = wx.App()
myGUI(None, title="myGUI")
app.MainLoop()
答案 0 :(得分：0)
我以前从未需要将我的线程设置为守护进程。事实上，我只有子类的Thread。我不是线程专家，因此我建议查看http://wiki.wxpython.org/LongRunningTasks并尝试其中一种方法或使用我在此处使用的方法：http://www.blog.pythonlibrary.org/2010/05/22/wxpython-and-threads/我已经多次使用后者而没有任何问题。否则，您应该交叉发布到官方wxPython用户组，其中有一些知识渊博的人，我相信我们可以帮助您。