Python 获取文件中最长行的长度和最长行

1, 使用文件
#vim  /etc/motd

"1        hello world"
2 ......   yes
3 no you are a shadiao
4  hahh maye you are right
ddddddddddddddddddddddddddddddddddd
ccccccccccccc
vvv

 1 2，python脚本
 2 [root@localhost python]# vim 7.py
 3 
 4 f=open("/etc/motd")
 5 alllines = [line.strip() for line in f]
 6 f.close()
 7 linestr = ''
 8 lenline = 0
 9 for eachline in alllines:
10   lenstr = len(eachline)
11   if lenstr > lenline:
12     lenline = lenstr
13     linestr = eachline
14 print ("The longest str is %s" % linestr)
15 print ("The number is %d" % lenline)

3，运行结果
[root@localhost python]# python 7.py
The longest str is ddddddddddddddddddddddddddddddddddd
The number is 35