Google Sheets api 无法正确识别所有单元格

如何解决Google Sheets api 无法正确识别所有单元格

我正在尝试编写一个脚本来根据单元格和我选择的每个单元格的值的长度进行评分。问题是当我使用此代码时：

import gspread
from oauth2client.service_account import ServiceAccountCredentials
scope = ["https://spreadsheets.google.com/Feeds",'https://www.googleapis.com/auth/spreadsheets',"https://www.googleapis.com/auth/drive.file","https://www.googleapis.com/auth/drive"]
creds = ServiceAccountCredentials.from_json_keyfile_name("creds.json",scope)
client = gspread.authorize(creds)

# get the instance of the Spreadsheet
sheet = client.open('copy of Event Organizer')

# get the first sheet of the Spreadsheet
sheet_instance = sheet.get_worksheet(3)

words = ["C4","C5","C7","C9","C11","C13","C15","C17","C19","C21","C23","C25"]
values = [1012,12317,1120,1345,134,1420,5,531,220,15,2354]

len_list = []
for i,word in enumerate(words):
    try:
        len_list.append(len(sheet_instance.acell(word).value))

    except:
        len_list.append(0)
    len_list[i] = len_list[i] * values[i]

print(len_list)
print(sum(len_list))
sheet_instance.update_acell("C29",sum(len_list))

由于某种原因，代码告诉我第一个单元格 (C4) 是空的，即使它不是，因此计算出错。为什么会这样？有时这也会发生在其他细胞上。