Apply borders to all cells in a range with openpyxl

Question

I have a script that takes a pandas dataframe and chops it up into several hundred chunks and saves each chunk as a separate excel file. Each chunk will have the same number

Answer 1

Had the same issue but couldn't find anything that fixes this problem for 2019 because of depreciation. I have something that works below.. could be better but works for all intends and purposes.

def set_border(ws, cell_range):
    rows = ws[cell_range]
    for row in rows:
        if row == rows[0][0] or row == rows[0][-1] or row == rows[-1][0] or row == rows[-1][-1]:
            pass
        else:
            row[0].border = Border(left=Side(style='thin'))
            row[-1].border = Border(right=Side(style='thin'))
        for c in rows[0]:
            c.border = Border(top=Side(style='thin'))
        for c in rows[-1]:
            c.border = Border(bottom=Side(style='thin'))
    rows[0][0].border = Border(left=Side(style='thin'), top=Side(style='thin'))
    rows[0][-1].border = Border(right=Side(style='thin'), top=Side(style='thin'))
    rows[-1][0].border = Border(left=Side(style='thin'), bottom=Side(style='thin'))
    rows[-1][-1].border = Border(right=Side(style='thin'), bottom=Side(style='thin'))