python 验证码生成

# 验证码生成库
from captcha.image import ImageCaptcha  # pip3 install captcha
import random

number = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
alphabet = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u',
'v', 'w', 'x', 'y', 'z']
ALPHABET = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U',
'V', 'W', 'X', 'Y', 'Z']

def random_captcha_text(char_set=number, captcha_size=4):
# 验证码列表
captcha_text = []
for i in range(captcha_size):
# 随机选择
c = random.choice(char_set)
# 加入验证码列表
captcha_text.append(c)
return captcha_text

# 生成字符对应的验证码
def gen_captcha_text_and_image(i):
image = ImageCaptcha(width=64 * 2, height=64)
# 获得随机生成的验证码
captcha_text = random_captcha_text()
# 把验证码列表转为字符串
captcha_text = ''.join(captcha_text)
# 生成验证码
captcha = image.generate(captcha_text)
image.write(captcha_text, 'captcha/images/' + captcha_text + '_' + str(i) + '.jpg')  # 写到文件

num = 100
for i in range(num):
gen_captcha_text_and_image(i)