Openpyxl: Concatenation of several columns into one cell per row (Multi-row)

问题

This question is a follow up to: Openpyxl: TypeError - Concatenation of several columns into one cell per row

What I want to do: I want to concatenate the cells from columns F to M per row and put the concatenated value into column E like below. This needs to be done for all rows at the same time.

Input:

A B C D E F   G   H  .. M
.......   E1  90  2A .. 26
.......   0   80  F8 ..

Output:

A B C D E         F   G   H  .. M
....... E1902A..26
....... 080F8..

Code:

def concat_f_to_m():
    for row_value in range(1, sheet.max_row+1):
        values=[]
        del values[:]
        for row in sheet.iter_rows(min_col=6, max_col=14, min_row=row_value, max_row=row_value):
            for cell in row:
                if cell.value != None:
                    values.append(str(cell.value))

                else:
                    del values[:]
                    pass

            sheet[f'E{row_value}'].value= ''.join(values)

concat_f_to_m()

Also I have set the max column to column N (14) as the longest code goes until column M and I want to stop the loop once there is no entry found in order to go out and join the list's items. I cannot overcome the issue that despite a print of the values list shows only the row's items, it does not write it down into the cell. Could you give me a hint how to concatenate through all rows by joining the values list at the certain row? Thank you!

回答1:

Correct implementation:

def concat_f_to_m():
for row_value in range(1, sheet.max_row+1):
    values=[]
    del values[:]
    for row in sheet.iter_rows(min_col=6, max_col=14, min_row=row_value, max_row=row_value):
        for cell in row:
            if cell.value != None:

                values.append(str(cell.value))
                sheet[f'E{row_value}'].value= ''.join(values)
            else:
                del values[:] 
                break

concat_f_to_m()

来源：https://stackoverflow.com/questions/60143273/openpyxl-concatenation-of-several-columns-into-one-cell-per-row-multi-row

标签

python

excel

openpyxl