我有一个python脚本,当我从Spyder或Jupyter Notebook或其他IDE或Visual Studio编译它时,它运行良好;但是当我尝试从命令提示符运行它时,我收到以下错误。
第 50 行,func_get_credentials_ret_service 如果不是 creds 或不是 creds.valid:UnboundLocalError:赋值前引用的局部变量"creds">
我尝试阻止获取凭据代码的某些部分等,但我认为出于非常明显的原因,这不是解决方案。
如果我在文件中作为命令运行也不起作用.bat(给出相同的错误(
提前感谢您可以提供的任何帮助。 以下是相关的代码部分
from __future__ import print_function
import pickle
import os.path
from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request
from Message_list import ListMessagesMatchingQuery
from dateutil import parser
import datetime as dt
import pprint
import sys
import base64
from apiclient import errors
import pandas as pd
import holidays
def func_get_credentials_ret_service():
##########################################################################
## From google api page
##
##########################################################################
SCOPES = ['https://www.googleapis.com/auth/gmail.readonly']
if os.path.exists('token.pickle'):
with open('token.pickle', 'rb') as token:
creds = pickle.load(token)
# If there are no (valid) credentials available, let the user log in.
if not creds or not creds.valid:
if creds and creds.expired and creds.refresh_token:
creds.refresh(Request())
else:
flow = InstalledAppFlow.from_client_secrets_file(
'credentials.json', SCOPES)
creds = flow.run_local_server(port=0)
# Save the credentials for the next run
with open('token.pickle', 'wb') as token:
pickle.dump(creds, token)
service = build('gmail', 'v1', credentials=creds)
return service
service = func_get_credentials_ret_service()
results = ListMessagesMatchingQuery(service, "me", 'from: "someprovider.com"')
id_list = func_create_id_list(results)
答案:
在为变量creds
赋值之前,您正在对变量进行比较。
修复:
该行:
if not creds or not creds.valid:
如果token.pickle
文件存在,则执行,但是在调用此文件之前没有变量creds
赋值。在SCOPES
的定义后添加此行:
creds = None