【Python】Colabでスプレッドシート連携

import gspread
# print(gspread.__version__)

from google.colab import auth
from oauth2client.client import GoogleCredentials
import gspread

auth.authenticate_user()
gc = gspread.authorize(GoogleCredentials.get_application_default())

# https://docs.google.com/spreadsheets/d/{スプレッドシートのID}/edit#gid=0
ss_id = "{スプレッドシートのID}"
workbook = gc.open_by_key(ss_id)

# シート名
worksheet = workbook.worksheet("シート名")

# 行数
worksheet.row_count

991