無法將數據分配給Worksheet.TypeError：'WriteOnlyWorksheet'對象沒有屬性'__getitem__'

Question

我是openpyxl的新手，用於將數據寫入excel。我實際上正在開發一個腳本，該腳本從動態網站中取消數據並將其保存爲excel。以下是將數據保存到Excel工作表的代碼。

from openpyxl import Workbook 
from openpyxl import load_workbook 

try: 
    wb = Workbook("MyData.xlsx") #Open Existing workbook 

except: 
    wb = load_workbook("MyData.xlsx") #Open Existing workbook 


wb.create_sheet("Trip Details") # Creating a Worksheet 
trips_ws = wb.get_sheet_by_name("Trip Details") 

row = 1 
column = 0 

trips_ws.column_dimensions['A'].width = 20 
trips_ws.column_dimensions['F'].width = 40 
trips_ws.column_dimensions['G'].width = 40 

trips_ws['A1'] = 'Date' 
trips_ws['B1'] = "Time" 
trips_ws['C1'] = "Fare" 
trips_ws['D1'] = "TripTime" 
trips_ws['E1'] = "Distance" 
trips_ws['G1'] = "PICKUP" 
trips_ws['H1'] = "DROP" 

但這正顯示出我的錯誤：

Traceback (most recent call last): 
File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 
2016.3.2\helpers\pydev\pydevd.py", line 1596, in <module> 
globals = debugger.run(setup['file'], None, None, is_module) 
File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 
2016.3.2\helpers\pydev\pydevd.py", line 974, in run 
pydev_imports.execfile(file, globals, locals) # execute the script 

File "C:/Users/manje_000/PycharmProjects/test\Add2Excel.py", line 54, in Add_to_excel 
trips_ws['A1'] = 'Date' 
TypeError: 'WriteOnlyWorksheet' object does not support item assignment 

搜索了這個有很多，但沒有發現任何東西。儘管按照正確的程序，任何人都可以告訴問題是什麼。

Answer 1

的問題是該行

wb = Workbook("MyData.xlsx") #Open Existing workbook 

你不能打開使用class Workbook(...)一個現有的工作簿。
唯一的參數是class Workbook(write_only=True|False)。

嘗試沒有字符串：wb = Workbook()

From the Docs： 在只寫工作簿時，行只能與追加加入（）。使用cell（）或iter_rows（）在任意位置寫入（或讀取）單元是不可能的。

如果您希望將數據添加到現有的工作簿：

實例到工作表添加到現有的工作簿和工作 寫入字符串「日期」到單元格「A1」

wb = load_workbook("MyData.xlsx") #Open Existing workbook 
trips_ws = wb.create_sheet("Trip Details") # Append a new Worksheet 
trips_ws['A1'] = 'Date' 
wb.save("MyData.xlsx") 

回來並將您的問題標記爲已回答，如果這對您有用或評論爲什麼不回答。