使用 Tkinter - Python的情绪检测器 GUI

先决条件： tkinter 简介 |使用 Vader 进行情绪分析

Python为开发 GUI（图形用户界面）提供了多种选择。在所有的 GUI 方法中，Tkinter 是最常用的方法。带有 Tkinter 的Python输出创建 GUI 应用程序的最快和最简单的方法。在本文中，我们将学习如何使用 Tkinter 创建情绪检测器 GUI 应用程序，并提供分步指南。

创建一个 tkinter ：

导入模块 – tkinter
创建主窗口（容器）
将任意数量的小部件添加到主窗口。
在小部件上应用事件触发器。

GUI 如下所示：

让我们创建一个基于 GUI 的 Sentiment Detector 应用程序，它可以显示与用户给出的给定句子相关的情绪。

下面是实现：

Python3

# import SentimentIntensityAnalyzer class
# from vaderSentiment.vaderSentiment module.
from vaderSentiment.vaderSentiment import SentimentIntensityAnalyzer
 
# import all methods and classes from the tkinter
from tkinter import *
 
# Function for clearing the  
# contents of all entry boxes
# And text area.
def clearAll() :
   
    # deleting the content from the entry box
    negativeField.delete(0, END)
    neutralField.delete(0, END)
    positiveField.delete(0, END)
    overallField.delete(0, END)
 
    # whole content of text area  is deleted
    textArea.delete(1.0, END)
     
# function to print sentiments
# of the sentence.
def detect_sentiment():
 
    # get a whole input content from text box
    sentence = textArea.get("1.0", "end")
 
    # Create a SentimentIntensityAnalyzer object.
    sid_obj = SentimentIntensityAnalyzer()
 
    # polarity_scores method of SentimentIntensityAnalyzer
    # object gives a sentiment dictionary.
    # which contains pos, neg, neu, and compound scores.
    sentiment_dict = sid_obj.polarity_scores(sentence)
 
    string = str(sentiment_dict['neg']*100) + "% Negative"
    negativeField.insert(10, string)
     
 
    string = str(sentiment_dict['neu']*100) + "% Neutral"
    neutralField.insert(10, string)
 
    string = str(sentiment_dict['pos']*100) +"% Positive"
    positiveField.insert(10, string)
     
    # decide sentiment as positive, negative and neutral
    if sentiment_dict['compound'] >= 0.05 :
        string = "Positive"
 
    elif sentiment_dict['compound'] <= - 0.05 :
        string = "Negative"
      
 
    else :
        string = "Neutral"
 
    overallField.insert(10, string)
         
 
 
# Driver Code
if __name__ == "__main__" :
     
 
    # Create a GUI window
    gui = Tk()
     
    # Set the background colour of GUI window
    gui.config(background =  "light green")
 
    # set the name of tkinter GUI window
    gui.title("Sentiment Detector")
 
    # Set the configuration of GUI window
    gui.geometry("250x400")
 
    # create a label : Enter Your Task
    enterText = Label(gui, text = "Enter Your Sentence",
                                     bg = "light green")
 
    # create a text area for the root
    # with lunida 13 font
    # text area is for writing the content
    textArea = Text(gui, height = 5, width = 25, font = "lucida 13")
 
    # create a Submit Button and place into the root window
    # when user press the button, the command or 
    # function affiliated to that button is executed 
    check = Button(gui, text = "Check Sentiment", fg = "Black",
                         bg = "Red", command = detect_sentiment)
 
    # Create a negative : label
    negative = Label(gui, text = "sentence was rated as: ",
                                        bg = "light green")
   
    # Create a neutral : label
    neutral = Label(gui, text = "sentence was rated as: ",
                                       bg = "light green")
   
    # Create a positive : label
    positive = Label(gui, text = "sentence was rated as: ",
                                        bg = "light green")
 
    # Create a overall : label
    overall = Label(gui, text = "Sentence Overall Rated As: ",
                                           bg = "light green")
 
    # create a text entry box 
    negativeField = Entry(gui)
 
    # create a text entry box 
    neutralField = Entry(gui)
 
    # create a text entry box 
    positiveField = Entry(gui)
 
    # create a text entry box 
    overallField = Entry(gui)
 
    # create a Clear Button and place into the root window
    # when user press the button, the command or 
    # function affiliated to that button is executed .
    clear = Button(gui, text = "Clear", fg = "Black",
                      bg = "Red", command = clearAll)
     
    # create a Exit Button and place into the root window
    # when user press the button, the command or 
    # function affiliated to that button is executed .
    Exit = Button(gui, text = "Exit", fg = "Black",
                        bg = "Red", command = exit)
 
    # grid method is used for placing 
    # the widgets at respective positions 
    # in table like structure.
    enterText.grid(row = 0, column = 2)
     
    textArea.grid(row = 1, column = 2, padx = 10, sticky = W)
     
    check.grid(row = 2, column = 2)
     
    negative.grid(row = 3, column = 2)
     
    neutral.grid(row = 5, column = 2)
     
    positive.grid(row = 7, column = 2)
     
    overall.grid(row = 9, column = 2)
     
    negativeField.grid(row = 4, column = 2)
 
    neutralField.grid(row = 6, column = 2)
                       
    positiveField.grid(row = 8, column = 2)
     
    overallField.grid(row = 10, column = 2)
     
    clear.grid(row = 11, column = 2)
     
    Exit.grid(row = 12, column = 2)
 
    # start the GUI
    gui.mainloop()

输出：