Python/Excel - 切片提取excel数据 - 排除行维护结构

Question

所以我试图在数据提取期间排除前三行。

for col_num in xrange(sheet.ncols): 
    col = sheet.col_values(col_num, start_rowx=3, end_rowx=None) 
    writer.writerow(col) #this syntax also may be skewing my results as well 

这个for循环消除了前3行放，然后把行变成列。

有关如何维护数据结构但同时消除行的任何建议？

低于全部脚本：

import glob 
import os 
import xlrd 
import csv 

ROOTDIR = r'C:\Users\username\Desktop\Mults' 
wb_pattern = os.path.join(ROOTDIR, '*.xlsx') 

workbooks = glob.glob(wb_pattern) 

with open('merged.csv', 'wb') as outcsv: 
writer = csv.writer(outcsv) 
    for wb in workbooks: 
     book_path = os.path.join(ROOTDIR, wb) 
     book = xlrd.open_workbook(book_path) 
     sheet = book.sheet_by_index(0) 
     for colx in xrange(sheet.ncols): 
      col = sheet.col_values(colx, start_rowx=2, end_rowx=None) 
      writer.writerow(col) #this syntax also may be skewing my results 

谢谢！

任何帮助非常感谢！

Answer 1

如果你想要行值，你为什么拉列写行为？拉行值并写下：

import glob 
import os 
import xlrd 
import csv 

ROOTDIR = r'C:\Users\username\Desktop\Mults' 
wb_pattern = os.path.join(ROOTDIR, '*.xlsx') 

workbooks = glob.glob(wb_pattern) 
start_rownum = 3 # or wherever you want to start copying 
with open('merged.csv', 'wb') as outcsv: 
    writer = csv.writer(outcsv) 
    for wb in workbooks: 
     book_path = os.path.join(ROOTDIR, wb) 
     book = xlrd.open_workbook(book_path) 
     sheet = book.sheet_by_index(0) 
     for rownum in xrange(start_rownum, sheet.numrows): 
      row = sheet.row_values(rownum) 
      writer.writerow(row)