Python 文件未找到

Question

我对 python 还很陌生。

我正在尝试制作一个脚本来读取数独解决方案并阻止它们是否正确。

我需要的东西：

1] 提示用户输入包含数独数字的文件/文件路径。它是一个包含 9 行和列的 .txt 文件。仅由数字组成。

2] 进行某种错误处理。

3] 然后，如果数独是有效的，我应该使用与原始输入文件相同的格式创建一个新的文本文件，前缀为“Correct_”

我还没有完全完成程序，但是当我输入错误的路径或文件名时出现此错误。

 Hello to Sudoku valitator,

 Please type in the path to your file and press 'Enter': example.txt #This is a non existing file, to test the Error Exception
    'Traceback (most recent call last):
  File "C:/Users/FEDROS/Desktop/bs.py", line 9, in <module>
    sudoku = open(prompt, 'r').readlines()
FileNotFoundError: [Errno 2] No such file or directory: 'example.txt'

这是我的脚本：

while True:
    try:
        prompt = input("\n Hello to Sudoku valitator,"
    "\n \n Please type in the path to your file and press 'Enter': ")
        break
    except (FileNotFoundError, IOError):
        print("Wrong file or file path")

sudoku = open(prompt, 'r').readlines()

def check(game):
    n = len(game)
    if n < (1):
        return False

    for i in range(0, n):
        horizontal = []
        vertical = []
        for k in range(0, n):

            if game[k][i] in vertical:
                return ("File checked for errors. Your options are wrong!")
            vertical.append(game[k][i])

            if game[i][k] in horizontal:
                return ("File checked for errors. Your options are wrong!")
            horizontal.append(game[i][k])
    return ("File checked for errors. Your options are correct!")

print (check(sudoku))

谢谢，我们将不胜感激任何建议或帮助。

Answer 1

try 块应该是开放的。不在提示符附近。

while True:
    prompt = input("\n Hello to Sudoku valitator,"
    "\n \n Please type in the path to your file and press 'Enter': ")
    try:
        sudoku = open(prompt, 'r').readlines()
    except FileNotFoundError:
        print("Wrong file or file path")
    else:
        break