google_sheet_data.py

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

# If modifying these scopes, delete the file token.pickle.
SCOPES = ['https://www.googleapis.com/auth/spreadsheets']

# The ID and range of a sample spreadsheet.
SAMPLE_SPREADSHEET_ID = '1I8bHgy6rMEehNxj4OxGl4WPmA9fXrwGDYdqMpkvvX3I'
SAMPLE_RANGE_NAME = 'A2:E500'


def main():
    """Shows basic usage of the Sheets API.
    Prints values from a sample spreadsheet.
    """
    creds = None
    # The file token.pickle stores the user's access and refresh tokens, and is
    # created automatically when the authorization flow completes for the first
    # time.
    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=8081)
        # Save the credentials for the next run
        with open('token.pickle', 'wb') as token:
            pickle.dump(creds, token)

    service = build('sheets', 'v4', credentials=creds)

    # Call the Sheets API
    sheet = service.spreadsheets()
    result = sheet.values().get(spreadsheetId=SAMPLE_SPREADSHEET_ID,
                                range=SAMPLE_RANGE_NAME).execute()
    values = result.get('values', [])

    def get_row_info(row, index):
        try:
            return row[index] if row[index] else 'null'
        except IndexError:
            return 'null'

    if not values:
        print('No data found.')
    else:
        for row in values:
            # Print columns A and E, which correspond to indices 0 and 4.
            row0 = get_row_info(row, 0)
            row1 = get_row_info(row, 1)
            row2 = get_row_info(row, 2)
            row3 = get_row_info(row, 3)
            row4 = get_row_info(row, 4)
            print("%s; %s; %s; %s; %s" % (row0, row1, row2, row3, row4))


if __name__ == '__main__':
    main()