将JSON文件转换为QRCode时出错

Question

我正在尝试使用pyqrcode将json文件转换为qr码

import tkinter as tk
from tkinter import filedialog
import json
import pyqrcode as qrcode

root= tk.Tk()
root.title('Convertitore CSV in JSON')

canvas1 = tk.Canvas(root, width = 300, height = 300, bg = 'lightsteelblue2', relief = 'raised')
canvas1.pack()

label1 = tk.Label(root, text='Tool Conversione File', bg = 'lightsteelblue2')
label1.config(font=('helvetica', 20))
canvas1.create_window(150, 60, window=label1)

def json_to_qrcode(jsonFilePath2, imageFilePath):
    with open(jsonFilePath2, 'w', encoding='utf-8') as jsonf:
        jsonReader = json.load(jsonf)
         
        qr = qrcode.QRCode(version = 1, box_size = 15, border = 5)
        data = jsonReader
        qr.add_data(data)
        qr.make(fit = True)
        img = qr.make_image(fill = 'black', back_color = 'white')
        img.save('Dieta.png')
        
jsonFilePath2 = filedialog.askopenfilename()
imageFilePath = filedialog.asksaveasfilename(mode='w', defaultextension=".png")

browseButton_CSV = tk.Button(text="     Importa JSON File     ", command=json_to_qrcode(jsonFilePath2, imageFilePath), bg='green', fg='white', font=('helvetica', 12, 'bold'))
canvas1.create_window(150, 130, window=browseButton_CSV)

root.mainloop()

以下是JSON文件的一个示例：

[
    {
        "Giorno": "Lunedi",
        "Tipologia": "Prima Colazione",
        "Alimento": "Fette biscottate",
        "Quantita": "3",
        "UDM": "fette",
        "Note": ""
    },
    {
        "Giorno": "Lunedi",
        "Tipologia": "Prima Colazione",
        "Alimento": "Latte",
        "Quantita": "200",
        "UDM": "g",
        "Note": ""
    }
]

当我尝试运行它给我的代码时，会出现以下错误：“TclError:bad option”-mode”：必须是-confirmoverwrite，-defaultextension，-filetypes，-initialdir，-initialfile，-parent，-title或-typevariable

我怎样才能解决它？ 提前谢谢

Answer 1

你能试试下面的代码吗。我认为你的问题现在应该解决了

请安装枕头库。（pip安装枕）

问题

1. 您试图为filedialog.asksaveasfilename（）函数传递错误的参数

2. 您正在使用pyqrcode而不是qrcode。（您已经编写了有关qrcode库的代码）

    import tkinter as tk
    from tkinter import filedialog
    import json
    import qrcode
   
    root = tk.Tk()
    root.title('Convertitore CSV in JSON')
   
    canvas1 = tk.Canvas(root, width=300, height=300, bg='lightsteelblue2', relief='raised')
    canvas1.pack()
   
    label1 = tk.Label(root, text='Tool Conversione File', bg='lightsteelblue2')
    label1.config(font=('helvetica', 20))
    canvas1.create_window(150, 60, window=label1)
   
   
    def json_to_qrcode(jsonFilePath2, imageFilePath):
        with open(jsonFilePath2, 'r') as jsonf:
          jsonReader = json.load(jsonf)
   
          qr = qrcode.QRCode(version=1, box_size = 15, border = 5)
          data = jsonReader
          qr.add_data(data)
          qr.make(fit=True)
          img = qr.make_image(fill='black', back_color='white')
          img.save('Dieta.png')
   
   
   jsonFilePath2 = filedialog.askopenfilename()
   imageFilePath = filedialog.asksaveasfilename()
   
   browseButton_CSV = tk.Button(text="     Importa JSON File     ", 
   command=json_to_qrcode(jsonFilePath2, imageFilePath),
                             bg='green', fg='white', font=('helvetica', 12, 'bold'))
   canvas1.create_window(150, 130, window=browseButton_CSV)
   
   root.mainloop()