why python print an empty line from a file

Question

I read file and print lines using python 2.7.8. But python always prints some extra empty lines.

I use the function:

def reverse(x):
    linelist = open(x, 'r').readlines()
    linelist.reverse()
    for line in linelist:
        print line

The content in my file is:

She sells seashells on the seashore;

The shells that she sells are seashells I`m sure.

So if she sells seashells on the seashore,

I`m sure that the shells are seashore shells.

But in the output, the last two print lines have extra empty lines:

I`m sure that the shells are seashore shells.

So if she sells seashells on the seashore,

The shells that she sells are seashells I`m sure.

She sells seashells on the seashore;

GHugo · Accepted Answer · 2014-09-04 08:04:56Z

2

readlines keeps the newline \n character of every line. You should use rstrip before printing the line:

for line in linelist:
    print line.rstrip('\n')

answered Sep 4, 2014 at 8:04

GHugo

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2 Comments

Morgan Deng Over a year ago

Why the first two lines can print exactly?

GHugo Over a year ago

Sorry I did not understand you comment.

Anonymous · Accepted Answer · 2014-09-04 08:08:58Z

0

readlines gives an extra line by default. So, try adding a comma(,) after line

for line in linelist: print line,

answered Sep 4, 2014 at 8:08

Anonymous

1

1 Comment

Morgan Deng Over a year ago

Why the first two lines can print exactly?

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