Python FileNotFound

Question

我对python很新.

我正在尝试创建一个脚本,它将读取数独的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9列的.txt文件.仅包含数字.

2]有一些错误处理.

3]然后,如果数独有效,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,我收到此错误.

 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,任何建议或帮助将不胜感激.

Answer 1

try块应该是开放的.没有提示.

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