Python实现删除文件中含“指定内容”的行示例
作者：JoeBlackzqq
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)
另外还可参考：bash删除文件中含"指定内容"的行
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希望本文所述对大家Python程序设计有所帮助。