How to correctly apply a RE for obtaining the last name (of a file or folder) from a given path and-CodePudding

I have wrote a code which creates a dictionary that stores all the absolute paths of folders from the current path as keys, and all of its filenames as values, respectively. This code would only be applied to paths that have folders which only contain file images. Here:

import os
import re
# Main method
the_dictionary_list = {}

for name in os.listdir("."):
    if os.path.isdir(name):
        path = os.path.abspath(name)
        print(f'\u001b[45m{path}\033[0m')
        match = re.match(r'/(?:[^\\])[^\\]*$', path)
        print(match)
        list_of_file_contents = os.listdir(path)
        print(f'\033[46m{list_of_file_contents}')
        the_dictionary_list[path] = list_of_file_contents
        print('\n')
print('\u001b[43mthe_dictionary_list:\033[0m')
print(the_dictionary_list)

The thing is, that I want this dictionary to store only the last folder names as keys instead of its absolute paths, so I was planning to use this re /(?:[^\\])[^\\]*$, which would be responsible for obtaining the last name (of a file or folder from a given path), and then add those last names as keys in the dictionary in the for loop.

I wanted to test the code above first to see if it was doing what I wanted, but it didn't seem so, the value of the match variable became None in each iteration, which didn't make sense to me, everything else works fine.

So I would like to know what I'm doing wrong here.

CodePudding user response：

I would highly recommend to use the builtin library pathlib. It would appear you are interested in the f.name part. Here is a cheat sheet.

enter image description here

CodePudding user response：

I decided to rewrite the code above, in case of wanting to apply it only in the current directory (where this program would be found).

import os
# Main method

the_dictionary_list = {}

for subdir in os.listdir("."):
    if os.path.isdir(subdir):
        path = os.path.abspath(subdir)
        print(f'\u001b[45m{path}\033[0m')
        list_of_file_contents = os.listdir(path)
        print(f'\033[46m{list_of_file_contents}')
        the_dictionary_list[subdir] = list_of_file_contents
        print('\n')
print('\033[1;37;40mThe dictionary list:\033[0m')
for subdir in the_dictionary_list:
    print('\u001b[43m' subdir '\033[0m')
    for archivo in the_dictionary_list[subdir]:
        print("    ", archivo)
print('\n')
print(the_dictionary_list)

This would be useful in case the user wants to run the program with a double click on a specific location (my personal case)