python 验证码test

#coding:utf8
import re
import urllib
import urllib2
import requests
from PIL import Image
import numpy as np

def downloads_pic(**kwargs):
    pic_name = kwargs.get(‘pic_name‘, None)

    url = ‘http://www.xxx.com/code.do‘
    res = requests.get(url, stream=True)
    with open(pic_path +‘test11.bmp‘, ‘wb‘) as f:
        for chunk in res.iter_content(chunk_size=1024):
            if chunk:  # filter out keep-alive new chunks
                f.write(chunk)
                f.flush()
        f.close()
pic_path=‘tmp\\‘

downloads_pic()
image = Image.open(‘tmp\\test.bmp‘)
#image.show() #显示图片
imgry = image.convert(‘L‘)  # 转化为灰度图 1:背景黑白