打印到 Tkinter GUI，而不是控制台

Question

我编写了一些脚本，其中包含一些函数来进行网络抓取。运行脚本时，使用简单的“打印”命令将结果打印到 IDLE shell。

我有一个基本的 tkinter GUI，它会在单击按钮时运行脚本，但结果仍会打印到 shell。我如何调整我的代码，以便在调用 Master.master() 时，嵌入在该进程中的所有打印语句都打印到我的 GUI 上的某个区域。我的代码如下：

from tkinter import *
import Master #Importing my scraper function

win = Tk()
win.title('Hashtag Scraper')

SearchButton = Button(win,text = 'Search')

SearchButton.grid(row=2,column = 1)

htag_label = Label(win,text = 'What Hashtag?')
htag_label.grid(row = 1,column = 0)

email_label = Label(win,text = 'FB Email')
email_label.grid(row = 1,column = 1)

password_label = Label(win,text = 'FB Password')
password_label.grid(row = 1,column = 2)

def button():
    htag = hashtag.get()
    user = usr.get()
    password = pwd.get()
    Master.master(htag,refresh = 3,usr = user,pwd = password) #Function call - want this to print on GUI instead of shell

#win.bind('<Return>', SearchButton)

SearchButton.configure(command = button)


hashtag = StringVar()
#hashtag.set('Hashtag')
hashtag_entry = Entry(win,textvariable=hashtag)
hashtag_entry.grid(row = 0, column = 0)

usr = StringVar()
usr.set('test@aol.com')
usr_entry = Entry(win,textvariable=usr)
usr_entry.grid(row = 0, column = 1)

pwd = StringVar()
#pwd.set('FB Password')
pwd_entry = Entry(win,textvariable=pwd)
pwd_entry.grid(row = 0, column = 2)

Answer 1

根据您的 GUI 上的哪个位置以及您想要显示 master 方法调用的结果的小部件类型，或者可能在 cmets 中提到的新弹出 TextBox 窗口中，将其更改为您想要的小部件类型希望使用：

class Master:
    def __init__(self, htag, refresh, usr, pwd):
        self.htag = htag
        self.refresh = refresh
        self.usr = usr
        self.pwd = pwd

    def master(self):
        return '\n'.join([self.htag, str(self.refresh), self.usr, self.pwd]) 

...

def button():
    htag = hashtag.get()
    user = usr.get()
    password = pwd.get()
    m = Master(htag, refresh = 3, usr = user, pwd = password)
    master_response = m.master() #Function call - want this to print on GUI instead of shell

    top = Toplevel()
    top.title("Response from master method")
    # response_message = "Search Button pushed response"
    msg = Message(top, text=master_response)
    msg.pack()

    button = Button(top, text="Dismiss", command=top.destroy)
    button.pack()

输出：