我在处理CSV文件时遇到了困难。我需要一个pythonic解决方案,用以下行读取CSV:
(应删除所有标题信息,例如 Row1 , Row2 , Row3 ,并指定值类型行数字也应该删除)
某种pandas / python解决方案是否可行?我一直在尝试但无济于事。
任何指导也会有很大帮助,因为我是新手。
答案 0 :(得分:1)
我认为这个问题可以解决这个问题。
f = open("new.csv","w")
for line in open("sample.csv").readlines():
temp = line.split(",").strip()
if len(temp) < 4 : pass
else :
if temp[0] == "Number": pass
else : f.write(line)
f.close()
答案 1 :(得分:1)
这应该可以解决问题,使用xlrd和xlwt:
import xlrd, xlwt, os
book = xlrd.open_workbook('Path to input file to read')
sheet = book.sheet_by_index(0)
nrows = sheet.nrows
ncols = sheet.ncols
outputs = []
for i in range(nrows):
if str(sheet.cell(i,0).value).startswith('Row') or str(sheet.cell(i,0).value).startswith('Number'):
continue
else:
outputs.append([sheet.cell(i,j).value for j in range(ncols)])
os.chdir('Path to save output file')
out = xlwt.Workbook()
sheet1 = out.add_sheet('Output')
for row, i in enumerate(outputs):
for col, j in enumerate(i):
sheet1.write(row, col, str(j))
out.save('out.xls')
答案 2 :(得分:1)
import csv
with open('old.csv', newline='') as fr, open('new.csv', 'w', newline='') as fw:
reader, writer = csv.reader(fr), csv.writer(fw)
for row in reader:
# skip rows until 'Value1'
if row[0] == 'Value1':
writer.writerow(row)
break
# skip type descriptions
next(reader)
# write the rest of rows
writer.writerows(list(reader))