Develop an application that uses file and directory access to encode their structure in a JSON file given a root directory. Create a python application that given a command-line argument of a root directory, it will traverse that directory and all subdirectories, saving into a file called struct. dat the JSON representation of the hierarchy of files and directory discovered. Use the following information to name file and directory in the JSON representation of the file/dir hierarchy, "File", "Dir", "SubDir" This file should be stored in the location that the program is executed and should override the file if it already exist.

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Explanation:

import sys

import os

import json

## This returns a walk() object,

## Starting in the current directory

## Which will return a tuple for every folder in it

x = os. walk(".") # Current directory

#x = os.walk(sys. argv[1]) # Directory specified by command-line argument

d = {}

print("Our walk object's output:")

for thing in x:

print(thing)

# As you will see, this prints out a 3-tuple for each folder:

# thing[0] contains the directory name of the folder

# thing[1] contains a list of all subfolders

# thing[2] contains a list of all files

# We will now encode this information as a dictionary

# This does not meet your assignment's formatting specifications

# Getting this right so that it puts the information into the dict the way your guy wants

# is in fact the hard part

# Instead of just having it all in one dict,

# he wants the json nested, which means he needs nested dict

# Each folder needs to be a dict, and needs to contain dicts for each of its subfolders

# That's not what we're doing right now

x = os.walk(".") # or sys.argv[1] if you want to take one command line argument

for thing in x:

d[thing[0]] = (thing[1], thing[2])

print("Our dict:")

print(d)

# Now that this is all in a dict we can json .dump it

json .dump(d, f) # Write data to the file

print("Printing json, this is what gets put into the file:")

print(json.dumps(d)) # Dump the data into a string so we can look at it

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