腾讯api调用

import requests
import base64
import hashlib
import time
import random
import os, string, glob

from urllib.parse import urlencode

class UseTencent(object):
    def __init__(self, AppID=None, AppKey=None):
        self.app_id = AppID
        self.app_key = AppKey
        self.img_base64str = ''

    def get_random_str(self):
        # 随机生成16位字符串
        rule = string.ascii_lowercase + string.digits
        str = random.sample(rule, 16)

        return "".join(str)

    def get_time_stamp(self):
        return str(int(time.time()))


    def get_img_base64str(self, image):
        with open(image, 'rb') as fp:
            imgbase64 = base64.b64encode(fp.read())
        self.img_base64str = imgbase64
        return self.img_base64str.decode()

    def get_dict_md5(self, req_dict, app_key):
        try:
            # 方法，先对字典排序，排序之后，写app_key，再urlencode
            sort_dict = sorted(req_dict.items(), key=lambda item: item[0], reverse=False)
            sort_dict.append(('app_key', app_key))
            sha = hashlib.md5()
            rawtext = urlencode(sort_dict).encode()
            sha.update(rawtext)
            md5text = sha.hexdigest().upper()
            if md5text:
                req_dict['sign'] = md5text
            return md5text
        except Exception as e:
            return None

    # 生成字典
    def get_req_dict(self, req_dict):
        """用MD5算法生成安全签名"""

        req_dict['app_id'] = self.app_id

        req_dict['time_stamp'] = self.get_time_stamp()

        req_dict['nonce_str'] = self.get_random_str()

        app_key = self.app_key
        self.get_dict_md5(req_dict, app_key)

# 改成你自己的API账号、密码
APPID = '*******'
APPKEY = '********'
TencentAPI = {
    
    
    "ocr_generalocr": {
    
    
        'APINAME': '通用OCR识别',
        'APIDESC': '识别上传图像上面的字段信息',
        'APIURL': 'https://api.ai.qq.com/fcgi-bin/ocr/ocr_generalocr',
        'APIPARA': 'image'
    }
}
# Apiname='ocr_generalocr', image=file
def ExecTecentAPI(Apiname, image):
    url = TencentAPI[Apiname]['APIURL']
    name = TencentAPI[Apiname]['APINAME']
    desc = TencentAPI[Apiname]['APIDESC']
    key = TencentAPI[Apiname]['APIPARA']

    tx = UseTencent(APPID, APPKEY)

    Req_Dict = {
    
    }

    value = tx.get_img_base64str(image)
    Req_Dict[key] = value


    # 生成请求包
    tx.get_req_dict(req_dict=Req_Dict)
    resp = requests.post(url, data=Req_Dict, verify=False)
    # print(name + '执行结果' + resp.text)
    return resp.text

def user(file):
    rest = ExecTecentAPI(Apiname='ocr_generalocr', image=file)
    rest = eval(rest)
    list_txt = ''
    for item in rest[u'data'][u'item_list']:
        # print(item[u'itemstring'])
        list_txt = list_txt + item[u'itemstring']
    print(list_txt)
    return list_txt

if __name__ == "__main__":
    file = r'E:\python\\1.png'
    user(file)