Question

import os
import tkinter as tk
from tkinter import filedialog

def add_numbers():
    attempts = 0
    results = []

    while attempts < 3:
        try:
            num1 = float(input("Enter the first number: "))
            num2 = float(input("Enter the second number: "))

            result = num1 + num2
            equation = f"{num1} + {num2} = {result}"

            print(equation)
            results.append(equation)
            attempts += 1

        except ValueError:
            attempts += 1
            print("Invalid input. Please enter valid numbers.")

    save_filename = "results.txt"
    folder = filedialog.askdirectory()
    save_location = os.path.join(folder, save_filename)
    
    with open(save_location,  w ) as file:
        for equation in results:
            file.write(equation +  
 )
    

    print(f"Results have been saved to {save_location}")
    print("You have reached the maximum number of attempts. Exiting.")


if __name__ == "__main__":
    add_numbers()

Hi, I would like it to let me choose the location in my computer to save the result file named result.txt. This is what I ve written so far, in Python.

所需经费如下:

Write a program that continually asks the user for two numbers to add (and quits when they are finished). For each addition the program performs, store the results in a file “data//results.txt”. The entire equation should be added, not just the sum. For example, if the user enters “2” and “4”, the following text should be appended to the file: 2 + 4 = 6 The program should be looping so try running a test for 3 entries that would be stored in result.txt.

事先感谢你。

Answer 1

File dialogs in Tkinter require an active Tkinter application context. you need the following code before you initiate the function call

root = tk.Tk()

因此,总体档案将考虑:

import os
import tkinter as tk
from tkinter import filedialog

root = tk.Tk()

def add_numbers():
   ...

add_numbers()

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