from os import urandom
from random import choice
char_set = {'small': 'abcdefghijklmnopqrstuvwxyz',
'nums': '0123456789',
'big': 'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
'special': '^!\$%&/()=?{[]}+~#-_.:,;<>|\\'
}
def generate_pass(length=21):
"""Function to generate a password"""
password = []
while len(password) < length:
key = choice(char_set.keys())
a_char = urandom(1)
if a_char in char_set[key]:
if check_prev_char(password, char_set[key]):
continue
else:
password.append(a_char)
return ''.join(password)
def check_prev_char(password, current_char_set):
"""Function to ensure that there are no consecutive
UPPERCASE/lowercase/numbers/special-characters."""
index = len(password)
if index == 0:
return False
else:
prev_char = password[index - 1]
if prev_char in current_char_set:
return True
else:
return False
if __name__ == '__main__':
print generate_pass()
Diff to Previous Revision
--- revision 5 2012-06-19 13:01:56
+++ revision 6 2012-06-19 13:25:03
@@ -1,9 +1,4 @@
-'''
-Created on 19 Jun 2012
-
-@author: ajay
-'''
-
+from os import urandom
from random import choice
char_set = {'small': 'abcdefghijklmnopqrstuvwxyz',
@@ -20,8 +15,8 @@
while len(password) < length:
key = choice(char_set.keys())
- a_char = choice(char_set[key])
- if a_char not in password:
+ a_char = urandom(1)
+ if a_char in char_set[key]:
if check_prev_char(password, char_set[key]):
continue
else:
