Google Sheets API“update”方法Http错误400

Question

我正在尝试制作一个python脚本，它可以读取和写入google电子表格。我基本上复制了位于https://developers.google.com/sheets/quickstart/python的python快速启动脚本，并使用位于https://developers.google.com/resources/api-libraries/documentation/sheets/v4/python/latest/的引用对其进行了修改。

使用快速启动脚本中显示的“get”方法，一切正常。我可以毫无错误地看这张纸。为了使用“update”而不是“get”（写入工作表而不是读取它），我删除了作用域url的.readonly部分。我还将get()方法替换为update()，并将body作为update()方法中的参数包含为json.dumps编码的值的json对象。这都是根据上述第二个参考。

每次“无效数据”我都会收到一个HttpError 400。

代码：

import httplib2
import os
import json

from apiclient import discovery
import oauth2client
from oauth2client import client
from oauth2client import tools

try:
    import argparse
    flags = argparse.ArgumentParser(parents=[tools.argparser]).parse_args()
except ImportError:
    flags = None

# If modifying these scopes, delete your previously saved credentials
# at ~/.credentials/sheets.googleapis.com-python-quickstart.json
SCOPES = 'https://www.googleapis.com/auth/spreadsheets'
CLIENT_SECRET_FILE = 'client_secret.json'
APPLICATION_NAME = 'Google Sheets API Python Quickstart'


def get_credentials():
    """Gets valid user credentials from storage.

    If nothing has been stored, or if the stored credentials are invalid,
    the OAuth2 flow is completed to obtain the new credentials.

    Returns:
        Credentials, the obtained credential.
    """
    home_dir = os.path.expanduser('~')
    credential_dir = os.path.join(home_dir, '.credentials')
    if not os.path.exists(credential_dir):
        os.makedirs(credential_dir)
    credential_path = os.path.join(credential_dir,
                                   'sheets.googleapis.com-python-quickstart.json')

    store = oauth2client.file.Storage(credential_path)
    credentials = store.get()
    if not credentials or credentials.invalid:
        flow = client.flow_from_clientsecrets(CLIENT_SECRET_FILE, SCOPES)
        flow.user_agent = APPLICATION_NAME
        if flags:
            credentials = tools.run_flow(flow, store, flags)
        else: # Needed only for compatibility with Python 2.6
            credentials = tools.run(flow, store)
        print('Storing credentials to ' + credential_path)
    return credentials

def main():
    """Shows basic usage of the Sheets API.

    Creates a Sheets API service object and prints the names and majors of
    students in a sample spreadsheet:
    https://docs.google.com/spreadsheets/d/1BxiMVs0XRA5nFMdKvBdBZjgmUUqptlbs74OgvE2upms/edit
    """
    credentials = get_credentials()
    http = credentials.authorize(httplib2.Http())
    discoveryUrl = ('https://sheets.googleapis.com/$discovery/rest?'
                    'version=v4')
    service = discovery.build('sheets', 'v4', http=http,
                              discoveryServiceUrl=discoveryUrl)

    spreadsheetId = '1Wbo5ilhw68IMUTSvnj_2yyRmWJ87NP-lHdJdaPBmTGA'
    rangeName = 'Class Data!A2:E'
    body = json.dumps({'values': [[0,0,0,0,0]]})
    result = service.spreadsheets().values().update(
        spreadsheetId=spreadsheetId, range=rangeName, body=body).execute()


if __name__ == '__main__':
    main()

控制台错误：

Traceback (most recent call last):
  File "/Users/user/Dropbox/python/jobs/test.py", line 73, in <module>
    main()
  File "/Users/user/Dropbox/python/jobs/test.py", line 69, in main
    spreadsheetId=spreadsheetId, range=rangeName, body=body).execute()
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/oauth2client/util.py", line 135, in positional_wrapper
    return wrapped(*args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/googleapiclient/http.py", line 832, in execute
    raise HttpError(resp, content, uri=self.uri)
googleapiclient.errors.HttpError: <HttpError 400 when requesting https://sheets.googleapis.com/v4/spreadsheets/1Wbo5ilhw68IMUTSvnj_2yyRmWJ87NP-lHdJdaPBmTGA/values/Class%20Data%21A2%3AE?alt=json returned "Invalid value at 'data' (type.googleapis.com/google.apps.sheets.v4.ValueRange), "{"values": [[0, 0, 0, 0, 0]]}"">