>>> def generatePasswords(length, amount):
    return '\n'.join(''.join([random.choice('ABCDEFGHIJKLMNOPQRSTUV\WXYZabcdefghijklmnopqrstuvwxyz1234567890') for i in range(length)]) for n in xrange(amount))

>>> print generatePasswords(8, 20)
oxG7n5Gu
Y\5Ty9O7
Tun0zFtF
U6j97SCS
USotRPqo
5TBcGEUo
ZOQ9Hh36
ZydyfC8c
jTYFA1v6
iEMWJ1af
W\4fBtsD
D5awHGjt
q69Gm8Qq
Z0Clof2k
wa1fdGZJ
EmlDtEzV
GPUQZEsG
W5CvE7rq
2UvoaBbE
8hkFyVnN