Question

Python Problem

Write a .py file like nameFiles.py.

In that .py, create a function that strips the first letters from all file names in a directory. If the new name is a duplicate of an existing name, Python will throw an exception. Handle that exception by adding “dup” a number as part of the files new name.

Call that function from a Jupyter Notebook, passing in the number of characters to delete and the file path.

Answer 1

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Code:

#!/usr/local/bin/python3

import os

def main():
   print('Enter full path of a directory? ')
   directory = input()
   print('Enter the number of characters to delete? ')
   char_to_delete = int(input())
  
   get_files(char_to_delete, directory)

def get_files(chr_to_delete, directory):
   file_names = list()
   cnt = 1

   try:
       # getting file name from the given directory
       for each_file in os.listdir(directory):
           # forming new file based on number of chars to delete
           new_filename = each_file[chr_to_delete:]

           # adding dup and count when the same filename exists
           if new_filename in file_names:
               new_filename += '_dup' + str(cnt)
               cnt += 1
           else:
               file_names.append(new_filename)

           print(new_filename)  

   except Exception as e:
       print(str(e))
          

if __name__=='__main__':
   main()

Code screenshot:

Code output screenshot: