我已成功运行Python2 Google Example Youtube 上传代码。现在，我想尝试将此代码转换为 Python3。当我用 2to3 工具转换它时，结果如下所示。如果我尝试使用 Python3 运行它，我会收到如下错误。我使用 Rasbian 操作系统。我必须导入哪些 Python3 库而不是google.oauth2.credentials, google_auth_oauthlib.flow, google_auth_oauthlib.flow？
转换后的 Python3 代码：
import argparse
import http.client
import httplib2
import os
import random
import time
import google.oauth2.credentials
import google_auth_oauthlib.flow
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError
from googleapiclient.http import MediaFileUpload
from google_auth_oauthlib.flow import InstalledAppFlow
# Explicitly tell the underlying HTTP transport library not to retry, since
# we are handling retry logic ourselves.
httplib2.RETRIES = 1
# Maximum number of times to retry before giving up.
MAX_RETRIES = 10
# Always retry when these exceptions are raised.
RETRIABLE_EXCEPTIONS = (httplib2.HttpLib2Error, IOError, http.client.NotConnected,
http.client.IncompleteRead, http.client.ImproperConnectionState,
http.client.CannotSendRequest, http.client.CannotSendHeader,
http.client.ResponseNotReady, http.client.BadStatusLine)
# Always retry when an apiclient.errors.HttpError with one of these status
# codes is raised.
RETRIABLE_STATUS_CODES = [500, 502, 503, 504]
# The CLIENT_SECRETS_FILE variable specifies the name of a file that contains
# the OAuth 2.0 information for this application, including its client_id and
# client_secret. You can acquire an OAuth 2.0 client ID and client secret from
# the {{ Google Cloud Console }} at
# {{ https://cloud.google.com/console }}.
# Please ensure that you have enabled the YouTube Data API for your project.
# For more information about using OAuth2 to access the YouTube Data API, see:
# https://developers.google.com/youtube/v3/guides/authentication
# For more information about the client_secrets.json file format, see:
# https://developers.google.com/api-client-library/python/guide/aaa_client_secrets
CLIENT_SECRETS_FILE = 'client_secret.json'
# This OAuth 2.0 access scope allows an application to upload files to the
# authenticated user's YouTube channel, but doesn't allow other types of access.
SCOPES = ['https://www.googleapis.com/auth/youtube.upload']
API_SERVICE_NAME = 'youtube'
API_VERSION = 'v3'
VALID_PRIVACY_STATUSES = ('public', 'private', 'unlisted')
# Authorize the request and store authorization credentials.
def get_authenticated_service():
flow = InstalledAppFlow.from_client_secrets_file(CLIENT_SECRETS_FILE, SCOPES)
credentials = flow.run_console()
return build(API_SERVICE_NAME, API_VERSION, credentials = credentials)
def initialize_upload(youtube, options):
tags = None
if options.keywords:
tags = options.keywords.split(',')
body=dict(
snippet=dict(
title=options.title,
description=options.description,
tags=tags,
categoryId=options.category
),
status=dict(
privacyStatus=options.privacyStatus
)
)
# Call the API's videos.insert method to create and upload the video.
insert_request = youtube.videos().insert(
part=','.join(list(body.keys())),
body=body,
# The chunksize parameter specifies the size of each chunk of data, in
# bytes, that will be uploaded at a time. Set a higher value for
# reliable connections as fewer chunks lead to faster uploads. Set a lower
# value for better recovery on less reliable connections.
#
# Setting 'chunksize' equal to -1 in the code below means that the entire
# file will be uploaded in a single HTTP request. (If the upload fails,
# it will still be retried where it left off.) This is usually a best
# practice, but if you're using Python older than 2.6 or if you're
# running on App Engine, you should set the chunksize to something like
# 1024 * 1024 (1 megabyte).
media_body=MediaFileUpload(options.file, chunksize=-1, resumable=True)
)
resumable_upload(insert_request)
# This method implements an exponential backoff strategy to resume a
# failed upload.
def resumable_upload(request):
response = None
error = None
retry = 0
while response is None:
try:
print('Uploading file...')
status, response = request.next_chunk()
if response is not None:
if 'id' in response:
print('Video id "%s" was successfully uploaded.' % response['id'])
else:
exit('The upload failed with an unexpected response: %s' % response)
except HttpError as e:
if e.resp.status in RETRIABLE_STATUS_CODES:
error = 'A retriable HTTP error %d occurred:\n%s' % (e.resp.status,
e.content)
else:
raise
except RETRIABLE_EXCEPTIONS as e:
error = 'A retriable error occurred: %s' % e
if error is not None:
print(error)
retry += 1
if retry > MAX_RETRIES:
exit('No longer attempting to retry.')
max_sleep = 2 ** retry
sleep_seconds = random.random() * max_sleep
print('Sleeping %f seconds and then retrying...' % sleep_seconds)
time.sleep(sleep_seconds)
def uploadvideo(file, title, description, category, keywords, privacy_status):
parser = argparse.ArgumentParser()
parser.add_argument('--file', required=False, help='Video file to upload', default=file)
parser.add_argument('--title', help='Video title', default=title)
parser.add_argument('--description', help='Video description', default=description)
parser.add_argument('--category', default=category,
help='Numeric video category. ' +
'See https://developers.google.com/youtube/v3/docs/videoCategories/list')
parser.add_argument('--keywords', help='Video keywords, comma separated',
default=keywords)
parser.add_argument('--privacyStatus', choices=VALID_PRIVACY_STATUSES,
default=privacy_status, help='Video privacy status.')
args = parser.parse_args()
youtube = get_authenticated_service()
try:
initialize_upload(youtube, args)
except HttpError as e:
print('An HTTP error %d occurred:\n%s' % (e.resp.status, e.content))
错误：
(venv) pi@raspberrypi:/var/www/html/GetVideo $ python3 upload_main.py
Traceback (most recent call last):
File "upload_main.py", line 1, in <module>
import upload_video as upload_video
File "/var/www/html/GetVideo/upload_video.py", line 10, in <module>
import google.oauth2.credentials
ImportError: No module named 'google'