Use python script to count the number of lines in a file

Python can count the number of lines in a file, do you believe it? Whether you believe it or not, I do. Let's take a look at how python counts the number of lines in a file. The code is very simple. I also made comments and it is very simple to implement. . .

1

2

3

4

5

6

7

8

9

#_*_coding:utf_8
#引入sys和系统os模块
import sys 
import os 
'''
计算某一个文件的行数
'''
def countFileLines(filename): 
    count = 0
    try: 
        handle = open(filename, 'r') 
        #循环文件句柄
for eachline in handle:
            #累加
            count += 1
    #异常捕获
    except IOError, e: 
        print 'file open error', e
    return count 
    
print countFileLines('/home/pythontab/tmp/a.php')