python 读取文本文件 删除里边的空行

123 344 456
234 566 77898
123 546 788
变为
123 344 456
234 566 77898
123 546 788

python 2.7
如果去掉里边的空行
谢谢

正则表达式替换所有空行（包括空格行）为空
import re
re.sub(r"\n[\s| ]*\n", '', open('d:/test.txt').read())

f = open('test.txt', 'r') lines = [ _l for _l in f if _l.strip() ] f.close() f = open('lua.lua', 'w') f.writelines(lines) f.close()

python读取一个文本文件，删除文本文件的空行代码如下： def delblankline(infile, outfile): """ delete blanklines of infile """ infp = open(infile, "r")o  utfp = open(outfile, "w") lines = infp.readlines() for li in lines: if li.split(): outfp.writelines(li) infp.close() outfp.close() #调用示例 if  __name__ == "__main__": delblankline("1.txt","2.txt")

def delblankline(infile, outfile): """ Delete blanklines of infile """ infp = open(infile, "r") outfp = open(outfile, "w") lines = infp.readlines() for li in lines: if li.split(): outfp.writelines(li) infp.close() outfp.close() #调用示例 if __name__ == "__main__": delblankline("1.txt","2.txt")