password cracker

import zipfile
import itertools 
import time
import sys

print("\nWelcome to the Password Cracker")
print("Make sure this script is in the same directory as the target zip file")
print("This script either brute forces or uses a dictinary attack")
print("\nSpecify the file name then either brute or dict to start attack\n")

file_location = input("Enter Zip Name: ")
attack_type = input("Enter either brute or dict to attack: ")

zip_file = zipfile.ZipFile(file_location)
letter_list = 'AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz'


#format time correctly
def format_time (seconds):
	m, s = divmod(seconds, 60)
	h, m = divmod(m, 60)
	print ('Time to Complete:',"%d:%02d:%f" % (h, m, seconds))

#brute force password
def brute_force ():
	start = time.clock()
	no_password = True
	x=1
	while no_password:
		res = itertools.product(letter_list, repeat=x)
		for i in res:
			a = ''.join(i)
			print(" Trying..... ",a, end="\r") 
			try:
				zip_file.extractall(pwd=a.encode())
				end = time.clock()
				format_time((end-start))
				print('Found password',a,'\n')
				no_password = False
				break
				zip_file.close()
			except:
				pass
		x+=1
	return

def password_dict ():
	dictionary = input("Enter in dictionary: ")
	start = time.clock()
	with open(dictionary,'r',encoding='utf-8') as f:
		for line in f.readlines():
			password=line.strip('\n')
			print(line,end='\r')
			try:
				zip_file.extractall(pwd=password.encode())
				end = time.clock()
				format_time((end-start))
				print('Found password',password)
				break
			except:
				pass
	return


if attack_type.lower() == "brute":
	brute_force()
elif attack_type.lower() == "dict":
	password_dict()
else:
	print("Enter in valid input")