The key problem is that the path is wrong.listdirWhat we get is only thefile nameunder the directory, not thepath of the file.

So you must useos.path.jointo create a complete path.

I changed your code based on the above instructions:

import os def prt_dir(path, indent_symbol='', level=0): print(indent_symbol*level, os.path.basename(path)) if os.path.isdir(path): for f in os.listdir(path): fpath = os.path.join(path, f) prt_dir(fpath, indent_symbol, level+1) if __name__ == '__main__': rootpath = input("请输入目录：") prt_dir(rootpath, '--', 0)

It’s also a good idea to useos.walk, as shown below:

import os def prt_dir(rootpath, symbol=''): for root, dirs, files in os.walk(rootpath): path = root.split('/') print((len(path) - 1) * symbol, os.path.basename(root)) for file in files: print(len(path) * symbol, file) if __name__ == '__main__': rootpath = input("请输入目录：") prt_dir(rootpath, '--')

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Questions I answered: Python-QA

os.path.isdir(each_item):
There is a problem with the usage of this function

import os def prt_dir_files(rootpath, is_indent=True, level=0): print(rootpath) catedir = os.listdir(rootpath) for each_item in catedir: if os.path.isdir(rootpath+"/"+each_item): print(each_item) prt_dir_files(rootpath+"/"+each_item, is_indent, level+1) else: if is_indent: print("--" * level, end="") print(each_item) rootpath = input("请输入目录：") prt_dir_files(rootpath)