蟒蛇"IndexError: list index out of range" |目标： 读取 1 个 excel 文件并将数据附加到第二个 excel 文件

Question

脚本

的目标是从每天从cron作业生成的excel文件中获取数据，并将该数据附加到"master"excel文件的底部。

这是我现在所处的位置：

# Find the most recent excel file created by the cron job & open it.
localtime = time.localtime(time.time())
yy = localtime.tm_year
mm = localtime.tm_mon
dd = localtime.tm_mday
file_name = 'daily_' + str(yy) + '_' + str(mm) + '_' + str(dd-1) + '.xls'
file_loc = '/Users/' + file_name
new_sheet = open_workbook(file_loc, on_demand=True).sheet_by_index(0)
# Grab all the data from the recent cron job file starting at row 2 to avoid
# including headers.
for row in range(1, new_sheet.nrows):
    values = []
    for col in range(new_sheet.ncols):
        values.append(new_sheet.cell(row,col).value)
"""
The above loop structures the list 'values[]' in a way that the print
statement of value looks like the below output; which matches the formatting of 
master_file.xlsx:
        2341511  Sports 12112 Dog   324.92
        71611    Other  18192 Cat   128.17
        ...
"""
# Find the excel master file & open it.
sheet = open_workbook('master_file.xlsx').sheet_by_index(0)
# Find the first row that is empty.
new_row = sheet.nrows + 1
# Append the values[] list to the master file starting at row(new_row) and save
# the db file.
for row_num, row in enumerate(values, new_row):
    for col_num, col in enumerate(row):
        sheet.row(row_num).write(col_num, col)
sheet.save('master_file.xlsx')

我的回溯错误是：

File "daily.py", line 45, in <module>
    sheet.row(row_num).write(col_num, col)
  File "/Users/code/env/lib/python2.7/site-packages/xlrd/sheet.py", line 462, in row
    for colx in xrange(len(self._cell_values[rowx]))
IndexError: list index out of range

任何帮助将不胜感激！

Answer 1

从代码中得出的直觉是，在迭代之前，您实际上并没有向工作表中添加一行。

XLRD 看起来实际上没有修改现有工作表的方法。 看看这个SO帖子，这可能会有所帮助...

如何使用 xlrd 向.xls文件添加新列和行

Answer 2

你的意思是用col(new_row)而不是col，如：

for row_num, row in enumerate(values, col(new_row)):
    for col_num, col(new_row) in enumerate(row):
        sheet.row(row_num).write(col_num, col(new_row))

？