Python:身份验证凭据异常：“0”；请求具有无效的身份验证凭据。预期OAuth 2访问令牌“；

我编写了一个函数，它可以获取凭据并连接到google工作表。我从

googlesheet

检索数据，一切正常。出于某种原因，有时它会给我一个错误。我搜索了一下，发现有一种方法可以解决这个问题，我在下面修改了代码。但还是一样的问题。有人能帮我吗

这是我的代码：

scope = ['https://spreadsheets.google.com/feeds',
     'https://www.googleapis.com/auth/drive']

credentials=ServiceAccountCredentials.from_json_keyfile_name ('xxxx.json' , scope)
gc = gspread.authorize(credentials)

wks = gc.open("Test")


def network_list(request,networkname=''):

gs_client = gspread.authorize(credentials)
sheet=wks.get_worksheet(2)

if credentials.access_token_expired:
      gs_client.login()  # refreshes the token

mylist = sheet.get_all_records()

listofvm=[]
for mydict in mylist:
    # print(mydict)
    for key, value in mydict.items():

        if mydict[key] == networkname:
            # print(mydict['Network']+'  ' + mydict['IP_address'] + ' ' + str(mydict['Total_Intentes']))
            # templist.append({'Build':mydict['Build'], 'VM_Name':mydict['VM_Name']})
            # print(mydict['VM_Name'])
            if mydict['VM_Name'] not in listofvm:
                listofvm.append(mydict['VM_Name'])


return render(request, 'vm_list.html',{'listofvm':listofvm, 'networkname':networkname})

下面是我的错误

 APIError at /
 {
  "error": {
   "code": 401,
    "message": "Request had invalid authentication credentials. 
    Expected OAuth 2 access token, login cookie or other valid 
    authentication credential. See 
    https://developers.google.com/identity/sign-in/web/devconsole- 
    project.",
   "status": "UNAUTHENTICATED"
    }
  }

---

好了，伙计们，我找到答案了。我只是在这里发布，也许将来有人会需要这个。所有课程都教授打开谷歌电子表格，然后授权您的凭证，但当您请求谷歌工作表时，关键就在这里。您的代币发生了更改，这就是为什么在您的凭证之后请求数据输入“打开”命令的原因。我把正确的答案放在这里，我试过了，效果很好

我以前的代码

    scope = ['https://spreadsheets.google.com/feeds',
   'https://www.googleapis.com/auth/drive']

    credentials=ServiceAccountCredentials.from_json_keyfile_name ('xxxx.json' , scope)
    gc = gspread.authorize(credentials)

    wks = gc.open("Test")


    def network_list(request,networkname=''):

        gs_client = gspread.authorize(credentials)
        sheet=wks.get_worksheet(2)

        if credentials.access_token_expired:
            gs_client.login()  # refreshes the token

        mylist = sheet.get_all_records()

正确答案

    scope = ['https://spreadsheets.google.com/feeds',
    'https://www.googleapis.com/auth/drive']

    credentials=ServiceAccountCredentials.from_json_keyfile_name ('xxxx.json' , scope)
     gc = gspread.authorize(credentials)




     def network_list(request,networkname=''):

         gs_client = gspread.authorize(credentials)
         wks = gc.open("Test")
         sheet=wks.get_worksheet(2)

         if credentials.access_token_expired:
             gs_client.login()  # refreshes the token

         mylist = sheet.get_all_records()

---

默认情况下，您将在1小时内获得令牌，因此您必须再次运行：

credentials=ServiceAccountCredentials.from_json_keyfile_name ('xxxx.json' , scope)
gs_client = gspread.authorize(credentials)

或者您也可以尝试：

gc.login（）