如果文件已存在于 python 中，则循环增加一个数字

Question

这是我试图实现这一目标的代码：

    try:
        os.mkdir(f'{path}')
        with open(path + '\\SUSPENDED.txt', 'w') as file:
            file.write('\n'.join(LIST))
    except FileExistsError:
        while FileExistsError:
            i += 1
            os.mkdir(f'{path}_{i}')
            with open(path + '\\SUSPENDED.txt', 'w') as file:
                file.write('\n'.join(LIST))
            break

我期待的是，如果“路径”存在，则将其设为“路径_1”，如果“路径_1”存在，则将其设为“路径_2”，如果“路径_2”将其设为“路径_3”，依此类推...

对不起，如果我的问题不清楚

Answer 1

# 之后的所有解释都用代码编写:)

import os

target_path = os.path.abspath(os.path.dirname(__file__))  # Path where folder should be created.
base = 'tests'  # Base name of the folder.
i = 0

while True:
    try:
        os.mkdir(base)  # Try creating folder with base name.
    except FileExistsError:
        i += 1  # If folder exists increment an index.
        base = base.split('_')[0] + f'_{i}'  # Split the name by '_' and add index value.
    else:
        with open(os.path.join(target_path, base, 'SUSPENDED.txt'), 'w') as file:  # Create file.
            file.write('FOO')  # Change content for anything you want.
        break  # Task completed, break the while loop :)