Question

我有一个小程序进入新闻聚合器，获取hrefs，并在窗口中返回。如果选择多个站点，我想打开多个窗口，现在，它只会转到列表中的第一个，并完美地完成。我假设我没有正确地将列表的内容传递给我的程序中的下一步。

import wx
import urllib2
from BeautifulSoup import BeautifulSoup
import re
from pyparsing import makeHTMLTags, originalTextFor, SkipTo, Combine
import wx
import wx.html
global P

siteDict = {0:'http://www.reddit.com', 1:'http://www.digg.com',2:'http://www.stumbleupon.com', 3:'news.google.com'}

class citPanel(wx.Panel):
    def __init__(self, parent, id):
        wx.Panel.__init__(self, parent, id)
        allSites = ['Reddit', 'Digg', 'StumbleUpon', 'Google News']
        wx.StaticText(self, -1, "Choose the Sites you would like Charlie to Visit:", (45, 15))      
        self.sitList = wx.CheckListBox(self, 20, (60, 50), wx.DefaultSize, allSites)

class nextButton(wx.Button):
    def __init__(self, parent, id, label, pos):
        wx.Button.__init__(self, parent, id, label, pos)

class checkList(wx.Frame):
    def __init__(self, parent, id, title):
        wx.Frame.__init__(self, parent, id, title, size=(400, 300))
        self.panel = citPanel(self, -1)
        nextButton(self.panel, 30, 'Ok', (275, 50))
        self.Bind(wx.EVT_BUTTON, self.Clicked)       
        self.Centre()
        self.Show(True)

    def Clicked(self, event):
        checkedItems = [i for i in range(self.panel.sitList.GetCount()) if self.panel.sitList.IsChecked(i)]
        print checkedItems
        r = [siteDict[k] for k in checkedItems]
        print r
        for each in r:
            pre = '<HTML><head><title>Page title</title></head>'
            post = '</HTML>'
            site = urllib2.urlopen(each)
            html=site.read()
            soup = BeautifulSoup(html)
            tags = soup.findAll('a')

            soup1 = BeautifulSoup(''.join(str(t) for t in tags))
            print soup1.prettify()

            aTag,aEnd = makeHTMLTags("A")

            aTag = originalTextFor(aTag)
            aEnd = originalTextFor(aEnd)

            aLink = aTag + SkipTo(aEnd) + aEnd
            aLink.setParseAction(lambda tokens : ''.join(tokens))

            links = aLink.searchString(html)

            out = []
            out.append(pre)
            out.extend(['  '+lnk[0] for lnk in links])
            out.append(post)

            P= '\n'.join(out)
            print type(P)

            print P




            class MyHtmlFrame(wx.Frame):
                def __init__(self, parent, title):
                    wx.Frame.__init__(self, parent, -1, title)
                    html = wx.html.HtmlWindow(self)
                    if "gtk2" in wx.PlatformInfo:
                        html.SetStandardFonts()

                    html.SetPage(P)


            app = wx.PySimpleApp()
            frm = MyHtmlFrame(None, "Charlie")
            frm.Show()
            app.MainLoop()


    #event.Skip()




    #self.Destroy()



app = wx.App()



checkList(None, -1, 'Charlie')
app.MainLoop()

我有一些混合的打印语句用于调试。所以，任何帮助，非常感谢。而且，如果他们都在同一个窗口结束，那也没关系。只是试图超越唯一做第一个

Answer 1

Eeek！您正在定义MyHTMLFrame类-inside-一个事件处理函数（不是一个好主意）。

我无法运行脚本，因为我没有模块PyParsing（总是生成尽量少依赖的样本......）

因此，我不确定这段代码是否运行，但它应该给你一般的想法。这是修改过的代码，我在clicked（）函数之后只改了一下

    def Clicked(self, event):
        checkedItems = [i for i in range(self.panel.sitList.GetCount()) if self.panel.sitList.IsChecked(i)]
        print checkedItems
        r = [siteDict[k] for k in checkedItems]
        print r
        for each in r:
            pre = '<HTML><head><title>Page title</title></head>'
            post = '</HTML>'
            site = urllib2.urlopen(each)
            html=site.read()
            soup = BeautifulSoup(html)
            tags = soup.findAll('a')

            soup1 = BeautifulSoup(''.join(str(t) for t in tags))
            print soup1.prettify()

            aTag,aEnd = makeHTMLTags("A")

            aTag = originalTextFor(aTag)
            aEnd = originalTextFor(aEnd)

            aLink = aTag + SkipTo(aEnd) + aEnd
            aLink.setParseAction(lambda tokens : ''.join(tokens))

            links = aLink.searchString(html)

            out = []
            out.append(pre)
            out.extend(['  '+lnk[0] for lnk in links])
            out.append(post)

            P= '\n'.join(out)
            print type(P)

            print P

            # create the html frame, pass it in your string
            frm = MyHtmlFrame(None, "Charlie", P)
            frm.Show()



class MyHtmlFrame(wx.Frame):
def __init__(self, parent, title, page):  # pass it in the page variable
    wx.Frame.__init__(self, parent, -1, title)
    html = wx.html.HtmlWindow(self)
    if "gtk2" in wx.PlatformInfo:
        html.SetStandardFonts()

    html.SetPage(page)



app = wx.App()

checkList(None, -1, 'Charlie') 
checkList.Show()   # show first frame, which opens other windows
app.MainLoop()

呃我讨厌用4个空格缩进来在StackOverflow中启动代码。希望这对你有用！

Answer 2

我对WxPython并不熟悉，但似乎有两个MainLoop正在运行当我注释掉两行时，我让你的程序打开两个窗口，如下所示：

        class MyHtmlFrame(wx.Frame):
            def __init__(self, parent, title):
                wx.Frame.__init__(self, parent, -1, title)
                html = wx.html.HtmlWindow(self)
                if "gtk2" in wx.PlatformInfo:
                    html.SetStandardFonts()

                html.SetPage(P)


        #app = wx.PySimpleApp()
        frm = MyHtmlFrame(None, "Charlie")
        frm.Show()
        #app.MainLoop()

从WxPython中的列表中打开多个窗口

2 个答案: