问DescribeProject接口,提示4100错误 ？？？？

# -*-coding:utf8-*-

import binascii
import hashlib
import hmac
import sys
import time
import random
import requests
from urllib.parse import quote


class GetInstanceList:
    '''根据ak获取实例列表详情'''

    def __init__(self, secret_id, secret_key):
        self.secret_id = secret_id
        self.secret_key = secret_key
        self.timeData = str(int(time.time()))
        self.nonceData = int(random.random() * 100000)
        self.httpProfile = "account.api.qcloud.com"  # HOST
        self.signMethod = "HmacSHA256"  # 加密方法
        self.requestMethod = "GET"  # 请求方法

    def sign(self, secretKey, signStr, signMethod):
        ''' 签名鉴权 '''
        if sys.version_info[0] > 2:
            signStr = signStr.encode("utf-8")
            secretKey = secretKey.encode("utf-8")

        # 根据参数中的signMethod来选择加密方式
        if signMethod == 'HmacSHA256':
            digestmod = hashlib.sha256
        else:
            digestmod = hashlib.sha1

        # 完成加密，生成加密后的数据
        hashed = hmac.new(secretKey, signStr, digestmod)
        base64 = binascii.b2a_base64(hashed.digest())[:-1]

        if sys.version_info[0] > 2:
            base64 = base64.decode()
        return base64

    def dictToStr(self, data):
        '''将Dict转为List并且拼接成字符串'''
        l = []
        for k, v in data.items():
            l.append(str(k) + "=" + str(v))
        return "&".join(l)

    def generate_sign_str(self, dictData):
        '''对字典进行排序;并拼接成请求字符串'''
        tempList = []
        resultList = []
        tempDict = {}
        for eveKey, eveValue in dictData.items():
            tempLowerData = eveKey.lower()
            tempList.append(tempLowerData)
            tempDict[tempLowerData] = eveKey
        tempList.sort()
        for eveData in tempList:
            tempStr = str(tempDict[eveData]) + "=" + \
                      str(dictData[tempDict[eveData]])
            resultList.append(tempStr)

        return "&".join(resultList)

    def generate_common_args(self):
        '''请求签名,构建公共参数'''
        common_args = {
            'Action': "DescribeProject",
            'Nonce': self.nonceData,
            'Region': "ap-shanghai",
            'SecretId': self.secret_id,
            'Timestamp': int(self.timeData)
        }

        full_request_args = common_args
        full_request_args["allList"] = 1
        res_str = self.generate_sign_str(full_request_args)                       # ①对对参数排序并拼接字符串
        requestStr = "%s%s%s%s%s%s" % (
        self.requestMethod, self.httpProfile, "/", "v2/index.php", "?", res_str)  # ②拼接签名原文字符串
        sign_str = self.sign(self.secret_key,requestStr,self.signMethod)          # ③生成签名串
        signData = quote(sign_str,"utf-8")                                        # ④签名串URL编码
        full_request_args["Signature"] = signData                                 # 将Signature键加入公共参数
        return full_request_args

    def generate_req_url(self):
        '''生成请求地址'''
        payload = self.generate_common_args()
        requestUrl = "https://%s/v2/index.php?" % (self.httpProfile)
        req_url = requestUrl + self.dictToStr(payload)
        return req_url

    def json_to_dict(self, str):
        import json
        dic = json.loads(str)
        return dic

    def get_region_projectName(self):
        requestUrl = self.generate_req_url()
        print(requestUrl)
        try:
            r = requests.get(requestUrl)
            if r.status_code == 200:
                context = r.text
                objects_dic = self.json_to_dict(context)
                print(objects_dic)
        except Exception as e:
            print(222,e)
            return str(e)


if __name__ == "__main__":
    secretId = "xxxx"
    secretKey = "XXXXXX"
    GL = GetInstanceList(secretId, secretKey)
    GL.get_region_projectName()