Python: How to create multi line cells in excel when exporting a pandas dataframe

Question

I have the following pandas Dataframe

df = pd.DataFrame([
    [['First Line', 'Second line']],
    [['First line', 'second line', 'third line']],
    [['first line']]
])

I am trying to export it into an Excel file. However I would like that between each list-element a line break is entered, similar to ALT-ENTER in Excel. So at the end, the excel would look like this:

Thank you

Answer 1

首先，您需要确保将单个字符串'\n'作为分隔符而不是列表：

df = pd.DataFrame([
        ['First Line\nSecond line'],
        ['First line\nsecond line\nthird line'],
        ['first line']
    ])

然后，您可以像往常一样调用to_excel，然后使用openpyxl打开文件，并将单元格的.style.alignment.wrap_text属性设置为True，就像this question建议的答案一样

或者你可以用StyleFrame对象（完全披露：我是这个模块的作者）来包装df为你做的事情（wrap_text=True用作默认值）：

from StyleFrame import StyleFrame

df = pd.DataFrame([
        ['First Line\nSecond line'],
        ['First line\nsecond line\nthird line'],
        ['first line']
    ])

StyleFrame(df).to_excel('test.xlsx').save()