python脚本.py：

from random import Random
i=0
def random_str(randomlength=30):
str = ''
chars = 'AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz0123456789_'
length = len(chars) - 1
random = Random()
for i in range(randomlength):
str+=chars[random.randint(0, length)]
return str
while (i<500):
i=i+1
print 'o'+random_str()

linux下执行：

python python脚本.py > python随机数.txt