Google Vision API文本檢測Python示例使用項目：「google.com:cloudsdktool」而不是我自己的項目

Question

我正在從github repo開始使用Cloud Vision API的python示例。

我已經設置了項目並使用其密鑰激活了服務帳戶。我也叫gcloud auth並輸入我的憑據。

這裏是我的代碼（如從視覺API文本檢測的Python的例子得出）：

import base64 
import os 
import re 
import sys 

from googleapiclient import discovery 
from googleapiclient import errors 
import nltk 
from nltk.stem.snowball import EnglishStemmer 
from oauth2client.client import GoogleCredentials 
import redis 

DISCOVERY_URL = 'https://{api}.googleapis.com/$discovery/rest?version={apiVersion}' # noqa 
BATCH_SIZE = 10 


class VisionApi: 
    """Construct and use the Google Vision API service.""" 

    def __init__(self, api_discovery_file='/home/saadq/Dev/Projects/TM-visual-search/credentials-key.json'): 
     self.credentials = GoogleCredentials.get_application_default() 
     print self.credentials.to_json() 
     self.service = discovery.build(
      'vision', 'v1', credentials=self.credentials, 
      discoveryServiceUrl=DISCOVERY_URL) 
     print DISCOVERY_URL 

    def detect_text(self, input_filenames, num_retries=3, max_results=6): 
     """Uses the Vision API to detect text in the given file. 
     """ 
     images = {} 
     for filename in input_filenames: 
      with open(filename, 'rb') as image_file: 
       images[filename] = image_file.read() 

     batch_request = [] 
     for filename in images: 
      batch_request.append({ 
       'image': { 
        'content': base64.b64encode(
          images[filename]).decode('UTF-8') 
       }, 
       'features': [{ 
        'type': 'TEXT_DETECTION', 
        'maxResults': max_results, 
       }] 
      }) 
     request = self.service.images().annotate(
      body={'requests': batch_request}) 

     try: 
      responses = request.execute(num_retries=num_retries) 
      if 'responses' not in responses: 
       return {} 
      text_response = {} 
      for filename, response in zip(images, responses['responses']): 
       if 'error' in response: 
        print("API Error for %s: %s" % (
          filename, 
          response['error']['message'] 
          if 'message' in response['error'] 
          else '')) 
        continue 
       if 'textAnnotations' in response: 
        text_response[filename] = response['textAnnotations'] 
       else: 
        text_response[filename] = [] 
      return text_response 
     except errors.HttpError as e: 
      print("Http Error for %s: %s" % (filename, e)) 
     except KeyError as e2: 
      print("Key error: %s" % e2) 



vision = VisionApi() 
print vision.detect_text(['test_article.png']) 

這是錯誤消息我得到：

Http Error for test_article.png: <HttpError 403 when requesting https://vision.googleapis.com/v1/images:annotate?alt=json returned "Google Cloud Vision API has not been used in project google.com:cloudsdktool before or it is disabled. Enable it by visiting https://console.developers.google.com/apis/api/vision.googleapis.com/overview?project=google.com:cloudsdktool then retry. If you enabled this API recently, wait a few minutes for the action to propagate to our systems and retry."> 

我希望能夠使用我自己的項目作爲示例，而不是默認的（google.com:cloudsdktool）。

Answer 1

下載您創建的證書和更新GOOGLE_APPLICATION_CREDENTIALS環境變量指向該文件：

export GOOGLE_APPLICATION_CREDENTIALS=/path/to/your/credentials-key.json 

參考：https://github.com/GoogleCloudPlatform/cloud-vision/tree/master/python/text#set-up-to-authenticate-with-your-projects-credentials

Answer 2

出口並沒有爲我工作，即使設置它的代碼：

import os 
... 
os.environ['GOOGLE APPLICATION_CREDENTIALS'] = 'path to servvice account json' 
os.environ['GCLOUD_PROJECT'] = 'project id' 
... 

但這種修復工作： Google cloud speech api throwing 403 when trying to use it