Generate Random String until target is matched

match_random_target.py

# Python program to generate and match 
# the string from all random strings 
# of same length 

# Importing string, random 
# and time modules 
import string 
import random 
import time 

# all possible characters including 
# lowercase, uppercase and special symbols 
possibleCharacters = string.ascii_lowercase + string.digits +
					string.ascii_uppercase + ' ., !?;:'

# string to be generated 
t = "Jason Borne"

# To take input from user 
# t = input(str("Enter your target text: ")) 

attemptThis = ''.join(random.choice(possibleCharacters) 
								for i in range(len(t))) 
attemptNext = '' 

completed = False
iteration = 0

# Iterate while completed is false 
while completed == False: 
	print(attemptThis) 
	
	attemptNext = '' 
	completed = True
	
	# Fix the index if matches with 
	# the strings to be generated 
	for i in range(len(t)): 
		if attemptThis[i] != t[i]: 
			completed = False
			attemptNext += random.choice(possibleCharacters) 
		else: 
			attemptNext += t[i] 
			
	# increment the iteration 
	iteration += 1
	attemptThis = attemptNext 
	time.sleep(0.1) 
 
print("Target matched after {} iterations".format(str(iteration)))