Python 3.3 Tkinter 更改 LabelFrame 位置

Question

我试图将标签框放在其他几个小部件旁边，但我根本无法弄清楚。目前，当我使用 .pack() 方法时，它显示在所有其他小部件下方。当我尝试使用 .grid(column=x, row=y) 配置位置时，程序运行但挂起并且没有出现 GUI。

相关代码如下

def createWidgets(self):
    # Create entrybox and align to grid
    self.send_entry = tk.Entry(self)
    self.send_entry.grid(row=0,column=0)
    # Create button,allign to grid, get xml
    self.change_sub = tk.Button(self,text='Change Subreddit',padx=5, pady=5, command=lambda :self.getXML(self.send_entry.get())).grid(row=0 , column=3)
    # Create scrollbar on Y-Axis
    self.lb_scrollY = tk.Scrollbar(self,orient=tk.VERTICAL)
    # On grid next to Listbox(sticky means fill whole row
    self.lb_scrollY.grid(row=1,column=4,sticky=tk.NS,rowspan=6)
    # Create Listbox and get Y from scrollbar
    self.thread_lb = tk.Listbox(self,yscrollcommand=self.lb_scrollY.set)
    # Calls function whenever a new item is selected
    self.thread_lb.bind('<<ListboxSelect>>',self.updateSelected)
    # scrolly will change the view of listbox
    self.lb_scrollY['command']=self.thread_lb.yview
    self.thread_lb.grid(row=1,column=0,sticky=tk.NS+tk.EW,columnspan=4,rowspan=3)
    self.threadFrame = tk.LabelFrame(main,text='Reddit')

    self.threadLabelTitle = tk.Label(self.threadFrame,textvariable=self.threadTitle,wraplength=200).grid(row=1,column=2,sticky= tk.EW)
    self.threadLabelAuth = tk.Label(self.threadFrame, textvariable=self.threadAuth,wraplength=200).grid(row=2,column=2,sticky = tk.EW)
    self.threadLabelPub = tk.Label(self.threadFrame, textvariable=self.threadPub,wraplength=200).grid(row=3,column=2,sticky = tk.EW)
    self.threadLabelArtLink = tk.Label(self.threadFrame, textvariable=self.threadArtLink,wraplength=200).grid(row=4,column=2,sticky = tk.EW)
    self.threadLabelThreadLink = tk.Label(self.threadFrame, textvariable=self.threadLink,wraplength=200).grid(row=5,column=2,sticky = tk.EW)
    self.threadImgLink = tk.Label(self.threadFrame, textvariable=self.threadImg,wraplength=200).grid(row=6,column=2,sticky = tk.EW)
    # self.columnconfigure(2,minsize=200)
    # self.rowconfigure(1,minsize=175)
    self.threadFrame.pack()
    self.QUIT = tk.Button(self, text="QUIT", fg="red", command=main.destroy,padx=5, pady=5).grid(row=7)

这是完整的程序，如果您愿意，您可以运行它。

import xml.etree.ElementTree as ET
import webbrowser,time,urllib.request,re
import tkinter as tk
import urllib

main = tk.Tk()
class Application(tk.Frame):


    def __init__(self, master=None):
        self.threadTitle = tk.StringVar()
        self.threadAuth = tk.StringVar()
        self.threadPub = tk.StringVar()
        self.threadArtLink = tk.StringVar()
        self.threadLink = tk.StringVar()
        self.threadImg = tk.StringVar()
        self.threadArtLink.set('Click something to display thread info')

        # Intializes tkinter gui framework
        tk.Frame.__init__(self, master)
        # Packs widgets needed
        self.pack()
        # Creates the widgets functions
        self.createWidgets()
        # Intializes the man rss.xml
        self.initial()
        # self.threadLabelArtLink = None
        # self.threadLabelTitle = None
        # self.threadLabelThreadLink = None
        # self.threadLabelArtLink = None
        # self.threadImgLink = None

    def createWidgets(self):
        # Create entrybox and align to grid
        self.send_entry = tk.Entry(self)
        self.send_entry.grid(row=0,column=0)
        # Create button,allign to grid, get xml
        self.change_sub = tk.Button(self,text='Change Subreddit',padx=5, pady=5, command=lambda :self.getXML(self.send_entry.get())).grid(row=0 , column=3)
        # Create scrollbar on Y-Axis
        self.lb_scrollY = tk.Scrollbar(self,orient=tk.VERTICAL)
        # On grid next to Listbox(sticky means fill whole row
        self.lb_scrollY.grid(row=1,column=4,sticky=tk.NS,rowspan=6)
        # Create Listbox and get Y from scrollbar
        self.thread_lb = tk.Listbox(self,yscrollcommand=self.lb_scrollY.set)
        # Calls function whenever a new item is selected
        self.thread_lb.bind('<<ListboxSelect>>',self.updateSelected)
        # scrolly will change the view of listbox
        self.lb_scrollY['command']=self.thread_lb.yview
        self.thread_lb.grid(row=1,column=0,sticky=tk.NS+tk.EW,columnspan=4,rowspan=3)
        self.threadFrame = tk.LabelFrame(main,text='Reddit')

        self.threadLabelTitle = tk.Label(self.threadFrame,textvariable=self.threadTitle,wraplength=200).grid(row=1,column=2,sticky= tk.EW)
        self.threadLabelAuth = tk.Label(self.threadFrame, textvariable=self.threadAuth,wraplength=200).grid(row=2,column=2,sticky = tk.EW)
        self.threadLabelPub = tk.Label(self.threadFrame, textvariable=self.threadPub,wraplength=200).grid(row=3,column=2,sticky = tk.EW)
        self.threadLabelArtLink = tk.Label(self.threadFrame, textvariable=self.threadArtLink,wraplength=200).grid(row=4,column=2,sticky = tk.EW)
        self.threadLabelThreadLink = tk.Label(self.threadFrame, textvariable=self.threadLink,wraplength=200).grid(row=5,column=2,sticky = tk.EW)
        self.threadImgLink = tk.Label(self.threadFrame, textvariable=self.threadImg,wraplength=200).grid(row=6,column=2,sticky = tk.EW)
        # self.columnconfigure(2,minsize=200)
        # self.rowconfigure(1,minsize=175)
        self.threadFrame.pack()
        self.QUIT = tk.Button(self, text="QUIT", fg="red", command=main.destroy,padx=5, pady=5).grid(row=7)


    def updateSelected(self, event):
        # getting selected listbox item
        i=self.thread_lb.curselection()
        # Returns tuple that must be split
        x,y,z = re.split("\D+",str(i))
        y=int(y)
        print(self.threadTitleList[y])
        print(self.threadPubDateList[y])
        print(self.threadLinkList[y])
        print(self.threadDescList[y])
        self.threadTitle.set(self.threadTitleList[y])
        self.threadAuth.set('Will have poster here')
        self.threadPub.set(self.threadPubDateList[y])
        self.threadArtLink.set(self.threadLinkList[y])
        self.threadLink.set(self.threadDescList[y])
        self.threadImg.set('Will put image here')

        # # threadTitle = self.threadTitleList[y]
        # print(self.threadLabelTitle["text"])
        # # self.threadLabelTitle['text']=threadTitle
        # self.threadLabelAutPub['text']=self.threadPubDateList[y]
        # self.threadImgLink['text']=self.threadLinkList[y]
        # self.threadLabelThreadLink['text']=self.threadDescList[y]
        # main.update()

    def descStripper(self,desc):
        # Intialize values
        l1,l2,l2Start = 0,0,0
        t1,t2,t2start = 0,0,0
        link = ""
        thread = ""

        # Where to start looking for each in description element
        l1=int(desc.find('<br/> <a href="'))
        t1=int(desc.find('</a> <a href="'))

        # If both of the tags are found then continue
        if l1 != -1 and t1 != -1:
            # Start looking for end of quotes 16 characters from beginning of tag
            l2Start = l1+16
            l2=int(desc.find('"',l2Start))
            # Link is created from what is in the quotes
            link = desc[l1+15:l2]

            # Same as above but to find thread link
            t2start = t1+15
            t2=int(desc.find('"',t2start))
            thread = desc[t1+14:t2]
            return link,thread
        else:
            # If it can't find one it will return an error
            link = "Couldn't find the stuff :("
            thread = "Couldn't find the thread link :("
            return link, thread

    def lbPopulator(self,title,pub,link):
        # Delete old entries from listbox
        self.thread_lb.delete(0,tk.END)
        # Iterate through all the items and append them to the listbox
        for item in title:
            self.thread_lb.insert(tk.END,item)

    def getXmlData(self):
        # Intialize lists
        self.threadPubDateList = []
        self.threadTitleList = []
        self.threadLinkList = []
        self.threadDescList = []
        self.threadThumbNailList = []
        # Use the downloaded rss.xml for XML parsing
        tree=ET.parse('rss.xml')
        # define root as the base of the XML parsing tree
        root=tree.getroot()
        for channel in root:
            # Iterate through all the channels
            for SubChannel in channel:
                # Iterate through all the items in the channel
                if SubChannel.tag == 'item':
                    # If the SubChannel is called item then search for the items below
                    for threadInfo in SubChannel:
                        # iterate through all the items in the 'item'
                        if threadInfo.tag == 'title':
                            # append the tag from the title to the list
                            self.threadTitleList.append(threadInfo.text)
                        if threadInfo.tag == 'pubDate':
                            #  Append the pubdate info to the list but remove excess characters
                            self.threadPubDateList.append(threadInfo.text[:-6])
                        if threadInfo.tag == 'description':
                            # Pass all the information from the description to the stripper to get the useful
                            # information and links
                            link,thread = self.descStripper(threadInfo.text)
                            self.threadLinkList.append(link)
                            self.threadDescList.append(thread)
            # Populate the listbox with the newly generated lists
        self.lbPopulator(self.threadTitleList,self.threadPubDateList,self.threadLinkList)

    def getXML(self,subreddit):
        try:
            # Try to download the xml file using the user input subreddit
            url = 'http://www.reddit.com'+subreddit+'.rss'
            source = urllib.request.urlretrieve(url,'rss.xml')
            self.getXmlData()
        except urllib.error.HTTPError as err:
            # Error caused by reddit API limiting connections
            print('Too many requests-Try again')

    def initial(self):
        try:
            # Same as above but downloads the front page
            source = urllib.request.urlretrieve('http://www.reddit.com/.rss','rss.xml')
            self.getXmlData()
        except urllib.error.HTTPError as err:
            print('Too many requests-Trying again 3')
            # If error occurs program waits 3 seconds and then restarts
            time.sleep(3)
            self.__init__()

# main.geometry("350x400")
app = Application(master=main)
# Begins the applications GUI loop

app.mainloop()

Answer 1

尝试此代码并使用 place 方法而不是 pack:

from tkinter import *
root=Tk()
mylabel = Label(root,text="This is my lablel.")
mylabel.place(x=30,y=30,height=20,width=100)