Python gspread - 获取最后一行而不获取所有数据？

Question

查看如何获取工作表最新行的数据的技巧。我已经看到了获取所有数据然后获取其长度的解决方案。

但这当然是浪费所有的获取。想知道是否有一种聪明的方法可以做到这一点，因为您已经可以使用

worksheet.append_rows([some_data])

将数据附加到最后一行+1

Answer 1

我在另一个问题中找到了这段代码，它在工作表中创建了一个虚拟附加。

之后，您可以稍后搜索位置：

def get_last_row_with_data(service, value_input_option="USER_ENTERED"):
    last_row_with_data = '1'
    try:
        # creates a dummy row

        dummy_request_append = service.spreadsheets().values().append(
            spreadsheetId='<spreadsheet id>',
            range="{0}!A:{1}".format('Tab Name', 'ZZZ'),
            valueInputOption='USER_ENTERED',
            includeValuesInResponse=True,
            responseValueRenderOption='UNFORMATTED_VALUE',
            body={
                "values": [['']]
            }
        ).execute()

        # Search the dummy row

        a1_range = dummy_request_append.get('updates', {}).get('updatedRange', 'dummy_tab!a1')
        bottom_right_range = a1_range.split('!')[1]
        number_chars = [i for i in list(bottom_right_range) if i.isdigit()]
        last_row_with_data = ''.join(number_chars)

    except Exception as e:
        last_row_with_data = '1'

    return last_row_with_data

您可以在此文档中查看 Append 示例。

但是，对我来说，它更容易使用：

# The ID of the sheet you are working with. 

Google_sheets_ID = 'ID_of_your_Google_Sheet' 

# define the start row that has data
# it will later be replace with the last row
# in my test sheet, it starts in row 2

last_row = 2 

# code to the get the last row
# range will be the column where the information is located
# remember to change "sheet1" for the name of your worksheet. 

response = service.spreadsheets().values().get(
    spreadsheetId = Google_sheets_ID,
    range = 'sheet1!A1:A'
)execute()

#Add the initial value where the range started to the last row with values 
Last_row += len(response['values']) - 1 

#If you print last row, you should see the last row with values in the Sheet. 
print(last_row) 

Answer 2

我使用了解决方案@buran metnion。如果您使用

初始化工作表

add_worksheet(title="title", rows=1, cols=10)

并且仅通过

追加新数据

worksheet.append_rows([some_array])

那么 @buran 的建议非常适合简单使用

worksheet.row_count

Answer 3

sheet = service.spreadsheets()
result = sheet.values().get(spreadsheetId=spreadsheet_id, range=f"{sheet_name}!A:A").execute()
values = result.get('values', [])
last_row = len(values) + 1