Apply border to cell range using Openpyxl

Question

I am using python 2.7.10 and openpyxl 2.3.2 and I am new to Python.

I am trying to apply a border to a specified range of cells in an Excel worksheet (e.g., C3:H10). My attempt below does not work with the following message:

AttributeError: The Cell object has no styles attributes.

How do I snap a border to a cell? Any ideas would be greatly appreciated.

My current code is:

import openpyxl
from openpyxl.styles import Border, Side

def set_border(ws, cell_range):
    rows = ws.iter_rows(cell_range)
    for row in rows:
        row[0].styles.borders = Border(left=Side(border_style='thin', color="FF000000"))
        row[-1].styles.borders = Border(right=Side(border_style='thin', color="FF000000"))
    for c in rows[0]:
        c.styles.borders = Border(top=Side(border_style='thin', color="FF000000"))
    for c in rows[-1]:
        c.styles.borders = Border(bottom=Side(border_style='thin', color="FF000000"))


# Example call to set_border
wb = openpyxl.load_workbook('example.xlsx')
ws = wb.get_sheet_by_name('Sheet1')

set_border(ws, "B3:H10")

Answer 1

First of all, the properties are called style(not styles) and border(not borders). You must also set it cell.borderdirectly to change the border .

, , , - . ( , , ):

def set_border(ws, cell_range):
    rows = ws[cell_range]
    side = Side(border_style='thin', color="FF000000")

    rows = list(rows)  # we convert iterator to list for simplicity, but it not memory efficient solution
    max_y = len(rows) - 1  # index of the last row
    for pos_y, cells in enumerate(rows):
        max_x = len(cells) - 1  # index of the last cell
        for pos_x, cell in enumerate(cells):
            border = Border(
                left=cell.border.left,
                right=cell.border.right,
                top=cell.border.top,
                bottom=cell.border.bottom
            )
            if pos_x == 0:
                border.left = side
            if pos_x == max_x:
                border.right = side
            if pos_y == 0:
                border.top = side
            if pos_y == max_y:
                border.bottom = side

            # set new border only if it one of the edge cells
            if pos_x == 0 or pos_x == max_x or pos_y == 0 or pos_y == max_y:
                cell.border = border

Answer 2

border = Border(
            left=cell.border.left,
            right=cell.border.right,
            top=cell.border.top,
            bottom=cell.border.bottom)

:

border = cell.border.copy()

PS: ...