操纵 os.path

Question

我正在尝试检查某个文件是否存在，但是，存在的文件都保存为 .png。有没有办法使用 os.path 查看文件是否存在而没有 .png 部分？例如，我想查看 example.png 是否存在，所以我输入 "example" 而不是 "example.png"

这是我目前的情况：

import os

filepath = str(input("If you want to make a new file, type None otherwise enter the file that it is being written to: "))
        while os.path.isfile(filepath) is False:
            if filepath == "None":
                filepath = functnone()
                break
            print("That filepath doesn't exist")
            filepath = str(input("If you want to make a new file, type None otherwise enter the file that it is being written to: "))

如果文件是 .png，这显然有效，但我该如何更改它，所以我需要做的就是检查没有 .png 的第一位？

Answer 1

您只需将您的输入与“.png”进行字符串连接

这看起来像：

import os

filepath = str(input("If you want to make a new file, type None otherwise enter the file that it is being written to: "))+'.png'
        while os.path.isfile(filepath) is False:
            if filepath == "None":
                filepath = functnone()
                break
            print("That filepath doesn't exist")
            filepath = str(input("If you want to make a new file, type None otherwise enter the file that it is being written to: "))+'.png'

操纵 os.path

Manipulating os.path

python

os.path