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

【问题标题】：Python: authentication credentials Exception: "Request had invalid authentication credentials. Expected OAuth 2 access token"Python：身份验证凭据异常：“请求具有无效的身份验证凭据。预期的 OAuth 2 访问令牌”
【发布时间】：2018-11-03 16:20:35
【问题描述】：

我编写了获取凭据并连接到谷歌表的函数。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它，我在下面更改了我的代码。但仍然是同样的问题。有人可以帮帮我吗？

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"
    }
  }

【问题讨论】：

标签： python google-sheets

【解决方案1】：

好的，伙计们，我找到了答案。我只是在这里发帖，将来可能有人会需要那个。所有课程都教打开谷歌电子表格，然后授权您的凭据，但是当您请求谷歌表时，关键就在这里，您的令牌已更改，这就是为什么在请求数据之前将“打开”命令放在您的凭据之后。我把正确的答案放在这里，我试过了，效果很好。

我之前的代码

    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()

【讨论】：

【解决方案2】：

默认情况下，您会在 1 小时内获得expires 的令牌，这就是您必须再次运行的原因：

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

或者你也可以试试：gc.login()

【讨论】：