# -*- coding: cp936 -*-

#转载源于：http://blog.csdn.net/houyj1986/article/details/21196027

#计算文件行数

#1、文件比较小：

fobj = open(r"C:\test.txt",'rU')

len_fobj = len(fobj.readlines())

print len_fobj

#2、文件比较大

len_fobj = -1

for len_fobj,line in enumerate(open(r"C:\test.txt",'rU')):

    pass

len_fobj += 1

print len_fobj

#3、较好的方法

import string

len_fobj = 0

fobj = open(r"C:\test.txt",'rb')  

while True:

    buffer = fobj.read(1024 * 8192)

    if not buffer:

        break

    len_fobj += buffer.count('\n')

fobj.close()

print len_fobj