使用Python创建一个 GUI 以将 CSV 文件转换为 excel 文件

先决条件： Python GUI – tkinter，使用 pandas 读取 csv

CSV 文件是使用逗号分隔值的逗号分隔值文件。它基本上用于在不同应用程序之间交换数据。在这种情况下，各个行由换行符分隔。每行中的数据字段用逗号分隔。

需要的模块

Pandas： Python是一门出色的数据分析语言，主要是因为以数据为中心的Python包的奇妙生态系统。要安装此模块，请在终端中键入以下命令。
```
pip install pandas
```
pandastable：这个库为 Tkinter 提供了一个表格小部件，具有绘图和数据操作功能。要安装此模块，请在终端中键入以下命令
```
pip install pandastable
```
tkintertable：此库用于将表添加到 Tkinter 应用程序。要安装此库，请在终端中键入以下命令。
```
pip install tkintertable
```

下面是实现。

输入 CSV 文件：

gui-to-convert-csv-to-excel

import pandas as pd
from tkinter import *
from tkinter import filedialog
from tkinter import messagebox as msg
from pandastable import Table
from tkintertable import TableCanvas
   
  
class csv_to_excel:
   
    def __init__(self, root):
   
        self.root = root
        self.file_name = ''
        self.f = Frame(self.root,
                       height = 200,
                       width = 300)
          
        # Place the frame on root window
        self.f.pack()
           
        # Creating label widgets
        self.message_label = Label(self.f,
                                   text = 'GeeksForGeeks',
                                   font = ('Arial', 19,'underline'),
                                   fg = 'Green')
        self.message_label2 = Label(self.f,
                                    text = 'Converter of CSV to Excel file',
                                    font = ('Arial', 14,'underline'),
                                    fg = 'Red')
   
        # Buttons
        self.convert_button = Button(self.f,
                                     text = 'Convert',
                                     font = ('Arial', 14),
                                     bg = 'Orange',
                                     fg = 'Black',
                                     command = self.convert_csv_to_xls)
        self.display_button = Button(self.f,
                                     text = 'Display',
                                     font = ('Arial', 14), 
                                     bg = 'Green',
                                     fg = 'Black',
                                     command = self.display_xls_file)
        self.exit_button = Button(self.f,
                                  text = 'Exit',
                                  font = ('Arial', 14),
                                  bg = 'Red',
                                  fg = 'Black', 
                                  command = root.destroy)
   
        # Placing the widgets using grid manager
        self.message_label.grid(row = 1, column = 1)
        self.message_label2.grid(row = 2, column = 1)
        self.convert_button.grid(row = 3, column = 0,
                                 padx = 0, pady = 15)
        self.display_button.grid(row = 3, column = 1, 
                                 padx = 10, pady = 15)
        self.exit_button.grid(row = 3, column = 2,
                              padx = 10, pady = 15)
   
    def convert_csv_to_xls(self):
        try:
            self.file_name = filedialog.askopenfilename(initialdir = '/Desktop',
                                                        title = 'Select a CSV file',
                                                        filetypes = (('csv file','*.csv'),
                                                                     ('csv file','*.csv')))
               
            df = pd.read_csv(self.file_name)
              
            # Next - Pandas DF to Excel file on disk
            if(len(df) == 0):      
                msg.showinfo('No Rows Selected', 'CSV has no rows')
            else:
                  
                # saves in the current directory
                with pd.ExcelWriter('GeeksForGeeks.xls') as writer:
                        df.to_excel(writer,'GFGSheet')
                        writer.save()
                        msg.showinfo('Excel file created', 'Excel File created')     
               
        except FileNotFoundError as e:
                msg.showerror('Error in opening file', e)
   
    def display_xls_file(self):
        try:
            self.file_name = filedialog.askopenfilename(initialdir = '/Desktop',
                                                        title = 'Select a excel file',
                                                        filetypes = (('excel file','*.xls'),
                                                                     ('excel file','*.xls')))
            df = pd.read_excel(self.file_name)
              
            if (len(df)== 0):
                msg.showinfo('No records', 'No records')
            else:
                pass
                
            # Now display the DF in 'Table' object
            # under'pandastable' module
            self.f2 = Frame(self.root, height=200, width=300) 
            self.f2.pack(fill=BOTH,expand=1)
            self.table = Table(self.f2, dataframe=df,read_only=True)
            self.table.show()
          
        except FileNotFoundError as e:
            print(e)
            msg.showerror('Error in opening file',e)
  
# Driver Code 
root = Tk()
root.title('GFG---Convert CSV to Excel File')
   
obj = csv_to_excel(root)
root.geometry('800x600')
root.mainloop()

输出：