使用 Python 列表填充下拉验证

Question

I am using openpyxl to manipulate a spreadsheet from Python.

I am trying to create a drop-down validation in a workbook tab called organisation . Is it possible to use a Python list to populate the elements in the drop down selection?

When I hardcode the drop down options to into the DataValidation line like so:

dv = DataValidation(type="list", formula1="The", "earth", "revolves", "around", "sun", allow_blank=True)

The drop down is created in the spreadsheet tab and populated with the options as expected.

However when I try to add the drop down options using Python list and then pass to the DataValidation line like so:

    valid = ['"The,earth,revolves,around,sun"']
    dv = DataValidation(type="list", formula1=valid, allow_blank=True)

the drop down list is not created.

For extra information please see the full script:

def addValidationDropDowns(path):
        
    valid = ['"The,earth,revolves,around,sun"']
   
    wb = openpyxl.load_workbook(path)
    ws = wb['organisation']
    dv = DataValidation(type="list", formula1=valid, allow_blank=True)
    ws.add_data_validation(dv)
    for x in range(0, 3):
        dv.add(ws["A"+str(x+10)])
    
    wb.save(path)
    
    return

Answer 1

I struggle with this the first time i did it. It is curious that if the 'type' paramater or DataValidation is "list" you think ¡ok, let's use a list. but no. it is expecting a string. I think your example will work if you remove the square brackets to the 'valid' variable.

valid = '"The,earth,revolves,around,sun"'