###############################
# old_password_generator.py #
###############################
import string, random, sys
SELECT = string.ascii_letters + string.punctuation + string.digits
SAMPLE = random.SystemRandom().sample
def main():
while True:
size = get_size()
password = generate_pw(size)
print_pause(password)
def get_size():
while True:
try:
size = int(input('Size: '))
except ValueError:
print('Please enter a number.')
except EOFError:
sys.exit()
else:
if 1 <= size <= 80:
return size
print('Valid number range is 1 - 80.')
def generate_pw(size):
password = ''.join(SAMPLE(SELECT, size))
while not approved(password):
password = ''.join(SAMPLE(SELECT, size))
return password
def approved(password):
group = select(password[0])
for character in password[1:]:
trial = select(character)
if trial is group:
return False
group = trial
return True
def select(character):
for group in (string.ascii_uppercase,
string.ascii_lowercase,
string.punctuation,
string.digits):
if character in group:
return group
raise ValueError('Character was not found in any group!')
def print_pause(*values, sep=' ', end='\n', file=sys.stdout):
print(*values, sep=sep, end=end, file=file)
try:
input()
except EOFError:
pass
if __name__ == '__main__':
main()
###############################
# new_password_generator.py #
###############################
from random import SystemRandom
from string import ascii_lowercase, ascii_uppercase, digits, punctuation
CHOICE = SystemRandom().choice
GROUPS = ascii_lowercase, ascii_uppercase, digits, punctuation
def main():
while True:
print('Code:', make_password(get_size()))
def get_size():
while True:
try:
size = int(input('Size: '))
except ValueError:
print('Please enter a number.')
except EOFError:
raise SystemExit()
else:
if 10 <= size <= 80:
return size
print('Valid number range is 10 - 80.')
def make_password(size):
while True:
password = ''
pool = using = tuple(map(set, GROUPS))
while True:
selection = CHOICE(using)
character = CHOICE(tuple(selection))
password += character
if len(password) == size:
return password
selection.remove(character)
if not selection:
break
using = tuple(group for group in pool if group is not selection)
if __name__ == '__main__':
main()
