python-记录一个按列内容拆分Excel文件的小方法

import tkinter as tk
import os
import tkinter.filedialog
import tkinter.simpledialog
import pandas as pd
import tkinter.messagebox
import tkinter.ttk
import traceback

global column, sheet_ori
global combox_2


# 按内容分类
def split_by_group():
    # 获取需要拆分文件的路径，表明，列名
    split_excel = tkinter.filedialog.askopenfilename(title='选择需要拆分的excel文件')
    sub_win = tk.Tk()
    sub_win.geometry("350x150")
    file = pd.ExcelFile(split_excel)
    sheets = file.sheet_names
    combox_1 = tk.ttk.Combobox(sub_win, width=20)
    combox_1['values'] = sheets
    combox_1["state"] = "readonly"
    label1 = tk.Label(sub_win,text='选择工作表')
    label1.grid(row=0,column=0)
    combox_1.grid(row=0, column=1)

    def split_process(*args):
        # 新建拆分结果路径
        global combox_2, sheet_ori
        notice = tkinter.messagebox.showinfo(title='信息提示！', message='选取拆分文件生成路径')
        split_col = combox_2.get()
        parent_dir = tk.filedialog.askdirectory()
        print(parent_dir)
        middleware_file_path = os.path.join(parent_dir, "拆分文件")
        if not os.path.exists(middleware_file_path):
            os.makedirs(middleware_file_path)
        # 读取拆分文件，并进行拆分动作
        df = pd.read_excel(split_excel, dtype=str, sheet_name=sheet_ori)
        a = 0
        for i, value in df.groupby(split_col):
            a = a + 1
            name_1 = value[split_col].tolist()[0]
            print(name_1)
            value.to_excel(os.path.join(middleware_file_path, str(name_1) + ".xlsx"), index=None)

    # 用获取的表名获取全部列名
    def appear(*args):
        global combox_2, sheet_ori
        sheet_ori = combox_1.get()  # 选择后激活获取
        print(sheet_ori)
        df_total = pd.read_excel(file, sheet_name=sheet_ori)
        columns = df_total.columns.values.tolist()
        print(columns)
        label2 = tk.Label(sub_win,text='选择拆分依据列')
        label2.grid(row=1, column=0)
        combox_2 = tk.ttk.Combobox(sub_win, width=20)
        combox_2['values'] = columns
        combox_2['state'] = 'readonly'
        combox_2.grid(row=1, column=1)
        label1 = tk.Label(sub_win, text="选择完拆分列后" + "\n" + "选择结果生成文件夹" + "\n" + "选择完成后开始运行" + "\n" + '不选择则生成在软件本体文件夹')
        label1.grid(row=2, column=0)

        combox_2.bind('<<ComboboxSelected>>', split_process)

    combox_1.bind('<<ComboboxSelected>>', appear)
    sub_win.update()
    sub_win.mainloop()
    res = traceback.format_exc()
    return res


split_by_group()