Python实现删除文件中含“指定内容”的行示例_Python

Python实现删除文件中含“指定内容”的行示例

2020-11-16 19:24JoeBlackzqq Python

这篇文章主要介绍了Python实现删除文件中含“指定内容”的行功能,涉及Python针对文件读取及字符串遍历、判断等相关操作技巧,需要的朋友可以参考下

本文实例讲述了Python实现删除文件中含指定内容的行。分享给大家供大家参考，具体如下：

									#!/bin/env python

									import shutil, sys, os

									darray = [

									  "Entering directory",

									  "In function ",

									  "Leaving directory",

									  "__NR_SYSCALL_BASE",

									  "arm-hisiv100-linux-ar ",

									  "arm-hisiv100-linux-gcc ",

									  "but argument is of type",

									  "dereferencing type-punned pointer will break strict-aliasing rules",

									  "differ in signedness",

									  "does break strict-aliasing rules",

									  "embedded '\\0' in format",

									  "excess elements in array initializer",

									  "implicit declaration of",

									  "make -C ",

									  " rm -f",

									  "this is the location of the previous definition",

									  "warning: multi-line comment"

									]

									def isInArray (array, line):

									  for item in array:

									    if item in line:

									      return True

									  return False

									if __name__ == '__main__':

									  argv = sys.argv

									  argc = len(argv)

									  if argc < 2:

									    print "Usage: %s <file>" %(os.path.basename(argv[0]))

									    exit()

									  fname = argv[1]

									  fresult = fname + ".result"

									  with open(fname, 'r') as f:

									    with open(fresult, 'w') as g:

									      for line in f.readlines():

									        if not isInArray(darray, line):

									          g.write(line)