captcha是pyhton的一个模块，用来生成图片和音频验证码。

安装

pip install captcha

使用

from captcha.audio import AudioCaptcha
from captcha.image import ImageCaptcha

# 加载声音和字体
audio = AudioCaptcha(voicedir='/path/to/voices')
image = ImageCaptcha(fonts=['/path/A.ttf', '/path/B.ttf'])

data = audio.generate('1234')
audio.write('1234', 'out.wav')

data = image.generate('1234')
image.write('1234', 'out.png')

flask验证码

from flask import Flask, Response
from captcha.image import ImageCaptcha

image = ImageCaptcha()
app = Flask(__name__)

@app.route("/captcha")
def captcha_view():
    # add your own logic to generate the code
    code = "ABCD"
    data = image.generate(code)
    return Response(data, mimetype="image/png")

参考

https://github.com/lepture/captcha