Python: Recursively count all file types and sizes in folders and subfolders

Question

I am attempting to count all files in a directory and any sub directories by type and over all size

The output should be a table that looks something like:

Directory A             
Number of subdirectories: 12    

|Type|  Count|  TotalSize/kb    |FirstSeen  |LastSeen  |
|----|-------|------------------|-----------|----------|
|.pdf|  8    |80767             |1/1/2020   |2/20/2020 | 
|.ppt|  9    |2345              |1/5/2020   |2/25/2020 |
|.mov|  2    |234563            |1/10/2020  |3/1/2020  | 
|.jpg|  14   |117639            |1/15/2020  |3/5/2020  |
|.doc|  5    |891               |1/20/2020  |3/10/2020 |

Sorry i was trying to get this into a table format for readability. But each record starts with a file type found in the directory.

Answer 1

This should do exactly what you want, count the size mapped by extensions. Tidy it up, pretty print the way you like, and you are done.

import os

def scan_dir(root_dir):
    # walk the directory
    result = {}
    for root, dirs, files in os.walk(root_dir):
        # count the files size
        for file in files:
            path = os.path.join(root, file)
            ext = os.path.splitext(file)[1].upper()
            size = os.stat(path).st_size
            result[ext] = (result[ext] if ext in result else 0) + size
    return result

print(scan_dir("."))

Edit: This doesn't collect the min/max timestamps for you, nor counts the files, but this should really put you on the right track.