#!/usr/bin/env python
import random
import string
def passgen(pw,p1,p2,p3):
    while pw != 0:
        x = random.choice(string.ascii_lowercase)
        y = random.choice(string.ascii_uppercase)
        z = random.choice(string.digits)
#        b = random.choice('xyz')
        if p1 == bool(True):
            print(x, end=" ")
        elif p2 == bool(True):
            print(y, end=" ")
        elif p3 == bool(True):
            print(z, end=" ")
        pw -= 1

x = int(input("enter password lenght: "))

x1 = str(input("lowercase [y/n]: "))
x2 = str(input("uppercase [y/n]: "))
x3 = str(input("digits [y/n]: "))

x11 = x12 = x13 = 0

if x1 == 'y':
    x11 = 1
elif x2 == 'y':
    x12 = 1
elif x3 == 'y':
    x13 = 1
else:
    print("nothing to do")

passgen(x,x11,x12,x13)

#!/usr/bin/env python
import random
import string

def passgen(length=12, lowercase=True, uppercase=True, digits=True):
    symbols = ''
    if lowercase:
        symbols += string.ascii_lowercase
    if uppercase:
        symbols += string.ascii_uppercase
    if digits:
        symbols += string.digits
    if not symbols:
        return None
    return ''.join(random.choice(symbols) for i in range(length))

x = int(raw_input("enter password lenght: "))
x1 = str(raw_input("lowercase [y/n]: ")) == 'y'
x2 = str(raw_input("uppercase [y/n]: ")) == 'y'
x3 = str(raw_input("digits [y/n]: ")) == 'y'
print passgen(x, x1, x2, x3)