This is a minimal python code to reveal the password for all wifi networks both private and public a device has connected to in the past

wifi_password_revealer.py

# importing subprocess
import subprocess

# getting meta data
meta_data = subprocess.check_output(['netsh', 'wlan', 'show', 'profiles'])

# decoding meta data
data = meta_data.decode('utf-8', errors ="backslashreplace")

# splitting data by line by line
data = data.split('\n')

# creating a list of profiles
profiles = []

# traverse the data
for i in data:
	
	# find "All User Profile" in each item
	if "All User Profile" in i :
		
		# if found
		# split the item
		i = i.split(":")
		
		# item at index 1 will be the wifi name
		i = i[1]
		
		# formatting the name
		# first and last character is use less
		i = i[1:-1]
		
		# appending the wifi name in the list
		profiles.append(i)
		

# printing heading	
print("{:<30}| {:<}".format("Wi-Fi Name", "Password"))
print("----------------------------------------------")

# traversing the profiles	
for i in profiles:
	# try catch block begins
	# try block
	try:
		# getting meta data with password using wifi name
		results = subprocess.check_output(['netsh', 'wlan', 'show', 'profile', i, 'key=clear'])
		
		# decoding and splitting data line by line
		results = results.decode('utf-8', errors ="backslashreplace")
		results = results.split('\n')
		
		# finding password from the result list
		results = [b.split(":")[1][1:-1] for b in results if "Key Content" in b]
		
		# if there is password it will print the pass word
		try:
			print("{:<30}| {:<}".format(i, results[0]))
		
		# else it will print blank in front of pass word
		except IndexError:
			print("{:<30}| {:<}".format(i, ""))
			
	
			
	# called when this process get failed
	except subprocess.CalledProcessError:
		print("Encoding Error Occured")