python实现根据文件关键字进行切分为多个文件的示例

#!/usr/bin/env python
#__*__ coding: utf-8 __*__
import re
import linecache
 
def fileParse():
 inputfile = input('Input SourcFile:') ##输入源文件，如A.txt
 fp = open(inputfile, 'r')
 
 number =[]
 lineNumber = 1
 keyword = input('Slice Keyword:') ##输入你要切分的关键字
 outfilename = input('Outfilename:')##输出文件名，如out.txt则写out即可，后续输出的文件是out0.txt,out1.txt...
 
 for eachLine in fp:  
  m = re.search(keyword, eachLine) ##查询关键字
  if m is not None:
   number.append(lineNumber) #将关键字的行号记录在number中
  lineNumber = lineNumber + 1
 size = int(len(number))
 for i in range(0,size-1):
  start = number[i]
  end = number[i+1]
  destLines = linecache.getlines(inputfile)[start+1:end-1] #将行号为start+1到end-1的文件内容截取出来
  fp_w = open(outfilename + str(i)+'.txt','w') #将截取出的内容保存在输出文件中
  for key in destLines:
   fp_w.write(key)
  fp_w.close()
 
if __name__ == "__main__":
 fileParse()