将样式从一个范围复制到另一个范围?

时间:2017-03-10 17:05:56

标签: python excel performance spreadsheet openpyxl

我有一个excel文件,我将其用作模板,我可以根据需要添加信息。

我有特殊的样式和合并需要在几个单元格范围内完成,但是当我有大量数据时,我现在正在这样做的方式(强制它)非常慢。

有没有办法让我做得更好?

for a in xrange(1, len(plans)):
offset = 3 * a

# Create blank templates for plans
for x in xrange(5, 549):
  first_col_cell = recommended.cell(row=x, column=4)
  second_col_cell = recommended.cell(row=x, column=5)
  third_col_cell = recommended.cell(row=x, column=6)

  new_first_col_cell = recommended.cell(row=x, column=4 + offset)
  new_second_col_cell = recommended.cell(row=x, column=5 + offset)
  new_third_col_cell = recommended.cell(row=x, column=6 + offset)

  if third_col_cell.has_style and x != 42:
    new_third_col_cell.font = copy(third_col_cell.font)
    new_third_col_cell.border = copy(third_col_cell.border)
    new_third_col_cell.fill = copy(third_col_cell.fill)
    new_third_col_cell.number_format = copy(third_col_cell.number_format)
    new_third_col_cell.protection = copy(third_col_cell.protection)
    new_third_col_cell.alignment = copy(third_col_cell.alignment)
    new_third_col_cell.value = copy(third_col_cell.value)

  if second_col_cell.has_style and x != 42:
    new_second_col_cell.font = copy(second_col_cell.font)
    new_second_col_cell.border = copy(second_col_cell.border)
    new_second_col_cell.fill = copy(second_col_cell.fill)
    new_second_col_cell.number_format = copy(second_col_cell.number_format)
    new_second_col_cell.protection = copy(second_col_cell.protection)
    new_second_col_cell.alignment = copy(second_col_cell.alignment)
    new_second_col_cell.value = copy(second_col_cell.value)

  if first_col_cell.has_style and x != 42:
    new_first_col_cell.font = copy(first_col_cell.font)
    new_first_col_cell.border = copy(first_col_cell.border)
    new_first_col_cell.fill = copy(first_col_cell.fill)
    new_first_col_cell.number_format = copy(first_col_cell.number_format)
    new_first_col_cell.protection = copy(first_col_cell.protection)
    new_first_col_cell.alignment = copy(first_col_cell.alignment)
    new_first_col_cell.value = copy(first_col_cell.value)

  if (x >= 6 and x <= 33) or x == 36 or x == 41 or x == 44:
    recommended.merge_cells(start_row=x, start_column=4 + offset, end_row=x, end_column=6 + offset)

    if first_col_cell.has_style:
      recommended_merge = colnum_string(4 + offset) + str(x) + ':' + colnum_string(6 + offset) + str(x)
      style_border(recommended, recommended_merge, border)
      second_col_cell.border = copy(first_col_cell.border)
      third_col_cell.border = copy(first_col_cell.border)

这也是calnum_string函数,如果需要的话:

def colnum_string(n):
  div=n
  string=""
  while div>0:
    module=(div-1)%26
    string=chr(65+module)+string
    div=int((div-module)/26)
  return string

1 个答案:

答案 0 :(得分:2)

工作量是要复制六种样式,例如
    new_third_col_cell.font = copy(third_col_cell.font)

尝试仅复制样式引用,而不是分配新样式,例如

target_cell._style = copy(source_cell._style)

每个样式可以节省~10%,如果并非所有样式都可以在所有单元格中使用。
仅复制使用的样式,例如:

if source_cell._style.fontId: target_cell.font = copy(s_cell.font)
...

除此之外,请考虑 slim 您的代码,例如:

def copy_style(s_cell, t_cell):
    ...

def merge_cells(ws, row, offset, columns_456):
    ...

def main(recommended, plans):
    column_456 = [4,5,6]

    for a in xrange(1, len(plans)):
        offset = 3 * a

        # Create blank templates for plans
        for x in xrange(5, 549):
            if x != 42:
              for column in column_456:
                  cell = recommended.cell(row=x, column=column)
                  if cell.has_style:
                      copy_style(cell, recommended.cell(row=x, column=column+offset))

            if (x >= 6 and x <= 33) or x == 36 or x == 41 or x == 44:
                merge_cells(recommended, x, offset, column_456)