Removal of white space

Question

I want to get rid of the white space at the end of each line.

w = input("Words: ")
w = w.split()
k = 1
length = []
for ws in w:
  length.append(len(ws))
  y = sorted(length)
while k <= y[-1]:
  if k in length:
    for ws in w:
      if len(ws) != k:
        continue
      else:
        print(ws, end=" ")
    print("")
  k += 1

The out put is giving me lines of words in assessing lengths eg if I type in I do love QI; I do QI love

But it has white space at the end of each line. If I try to .rstrip() it I also delete the spaces between the words and get; I doQI love

duplicate of http://stackoverflow.com/questions/2372573/how-do-i-remove-whitespace-from-the-end-of-a-string-in-python — Tanveer Alam, Dec 02 '14 at 12:04
^ Nope. Based on the OP's below comment "I have tried this but I keep losing the space between the words that are listed on the line." I think this is a duplicate of http://stackoverflow.com/questions/3739909/how-to-strip-all-whitespace-from-string — Sriram, Dec 02 '14 at 12:13

score 2 · Accepted Answer · answered Dec 04 '14 at 10:02

2

Use " ".join(ws) instead and it will auto but them on the same line (you will need to create a list rather than a string)

answered Dec 04 '14 at 10:02

user4323864

36
1

Hackaholic · Answer 2 · 2014-12-02T12:12:11.177

0

you need to use rstrip
demo:

>>> 'hello '.rstrip()
'hello'

rstrip removes any whitespace from right

lstrip removes whitespace from left:

>>> '  hello '.lstrip()
'hello '

while strip removes from both end:

>>> '  hello '.strip()
'hello'

you need to use split to convert them to list

>>> "hello,how,are,you".split(',')    # if ',' is the delimiter
['hello', 'how', 'are', 'you']
>>> "hello how are you".split()       # if whitespace is delimiter
['hello', 'how', 'are', 'you']

edited Dec 02 '14 at 12:12

answered Dec 02 '14 at 12:03

Hackaholic

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I have tried this but I keep losing the space between the words that are listed on the line. – user3864194 Dec 02 '14 at 12:08
I want it to list - I, do qi, love and when I rstrip it it reads I, doqi, love – user3864194 Dec 02 '14 at 12:09
can you show what is your input and expected output?? – Hackaholic Dec 02 '14 at 12:09
you need to use split not strip – Hackaholic Dec 02 '14 at 12:10
@user3864194: You need to use rstrip() on the input data __before__ you split it into words. – PM 2Ring Dec 02 '14 at 12:36

score 0 · Answer 3 · answered Dec 02 '14 at 12:04

0

re.sub(r"[ ]*$","",x)

You use use re.sub of re module.

answered Dec 02 '14 at 12:04

vks

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You _could_, but why use regex for a problem that a builtin str method can handle? – PM 2Ring Dec 02 '14 at 12:38
From doing some reading I think this will work but Im not sure where to put it in context of my code? – user3864194 Dec 03 '14 at 00:51
@user3864194 x is a line which you pass.just put it in a loop and pass lines.return value would be line without spaces at end – vks Dec 03 '14 at 02:24

Removal of white space

3 Answers3