xlwings函数用于查找包含数据的最后一行

时间:2015-10-29 15:17:49

标签: python python-2.7 xlwings

我试图找到包含数据的列中的最后一行。替换vba函数:LastRow = sht.Cells(sht.Rows.Count, "A").End(xlUp).Row

我正在尝试这个,但这会拉入Excel中的所有行。我怎样才能得到最后一行。

from xlwings import Workbook, Range
wb = Workbook()
print len(Range('A:A'))

7 个答案:

答案 0 :(得分:3)

可以使用通过api属性公开的VBA Find函数(使用它来查找带有星号的任何内容,并从第一个单元格开始搜索)。

示例:

row_cell = s.api.Cells.Find(What="*",
                   After=s.api.Cells(1, 1),
                   LookAt=xlwings.constants.LookAt.xlPart,
                   LookIn=xlwings.constants.FindLookIn.xlFormulas,
                   SearchOrder=xlwings.constants.SearchOrder.xlByRows,
                SearchDirection=xlwings.constants.SearchDirection.xlPrevious,
                       MatchCase=False)

column_cell = s.api.Cells.Find(What="*",
                      After=s.api.Cells(1, 1),
                      LookAt=xlwings.constants.LookAt.xlPart,
                      LookIn=xlwings.constants.FindLookIn.xlFormulas,
                      SearchOrder=xlwings.constants.SearchOrder.xlByColumns,
                      SearchDirection=xlwings.constants.SearchDirection.xlPrevious,
                      MatchCase=False)

print((row_cell.Row, column_cell.Column))

此处概述的其他方法似乎不需要数据之间的空行/列。

来源:https://gist.github.com/Elijas/2430813d3ad71aebcc0c83dd1f130e33

答案 1 :(得分:2)

您可以尝试使用Direction从最底部开始然后向上移动:

import xlwings
from xlwings.constants import Direction
wb = xlwings.Workbook(r'data.xlsx')
print(wb.active_sheet.xl_sheet.Cells(65536, 1).End(Direction.xlUp).Row)

答案 2 :(得分:2)

这与crazymachu的回答非常相似,只是包含在一个函数中。从xlwings的0.9.0版开始,你可以这样做:

import xlwings as xw

def lastRow(idx, workbook, col=1):
    """ Find the last row in the worksheet that contains data.

    idx: Specifies the worksheet to select. Starts counting from zero.

    workbook: Specifies the workbook

    col: The column in which to look for the last cell containing data.
    """

    ws = workbook.sheets[idx]

    lwr_r_cell = ws.cells.last_cell      # lower right cell
    lwr_row = lwr_r_cell.row             # row of the lower right cell
    lwr_cell = ws.range((lwr_row, col))  # change to your specified column

    if lwr_cell.value is None:
        lwr_cell = lwr_cell.end('up')    # go up untill you hit a non-empty cell

    return lwr_cell.row

直观地,该函数通过在工作簿中找到最极端的右下角单元开始。然后它会移动到您选择的列,然后向上移动直到它到达第一个非空单元格。

答案 3 :(得分:1)

综合上面的答案,您可以一行完成:

wb.sheet.range(column + last cell value).Get End of section going up[non blank assuming the last cell is blank].row

示例代码:

import xlwings as xw
from xlwings import Range, constants

wb = xw.Book(r'path.xlsx')
wb.sheets[0].range('A' + str(wb.sheets[0].cells.last_cell.row)).end('up').row

答案 4 :(得分:0)

我们可以使用Range对象找到最后一行和/或最后一列:

NVARCHAR(1-4000)

答案 5 :(得分:0)

python 3.6,xlwings 0.11

Solutoin 1

要找到包含数据的最后一行,您应该在水平和垂直方向上做一些工作。您必须遍历每一列以确定哪一行是最后一行。

/modules

我添加了 lastRow 和 lastColumn。为了使程序更有效,您可以根据您正在处理的数据的大致形状来设置这些参数。

解决方案 2

xlwings 很荣幸成为 pywin32 的包装器。我不知道您的情况是否允许使用键盘或鼠标。如果是这样,请先按 ctrl+tab 切换到工作簿,然后按 ctrl+a 选择包含数据的区域,然后调用 import xlwings workbook_all = xlwings.Book(r'path.xlsx') objectiveSheet = workbook_all .sheets['some_sheet'] # lastCellContainData(), inspired of Stefan's answer. def lastCellContainData(objectiveSheet,lastRow=None,lastColumn=None): lastRow = objectiveSheet.cells.last_cell.row if lastRow==None else lastRow lastColumn = objectiveSheet.cells.last_cell.column if lastColumn==None else lastColumn lastRows,lastColumns = [],[] for col in range(1,lastColumn): lastRows.append(objectiveSheet.range((lastRow, col)).end('up').row) # extract last row of every column, then max(). Or you can compare the next # column's last row number to the last column's last row number. Here you get # the last row with data, you can also go further get the last column with data: for row in range(1,lastRow): lastColumns.append(objectiveSheet.range((row, lastColumn)).end('left').column) return max(lastRows),max(lastColumns) lastCellContainData(objectiveSheet,lastRow=5000,lastColumn=300)

另一种方式: 当您隐约知道数据右下角单元格的位置时,例如 AAA10000,只需调用 workbook_all.selection.rows.count

答案 6 :(得分:-1)

试试这个:

import xlwings as xw

cellsDown = xw.Range('A1').vertical.value

cellsRight = xw.Range('A1').horizontal.value

print len(cellsDown)

print len(cellsRight)