´ð¸´: how to remove \n in the list

[Penny Y.]

lines[:] = [line.rstrip('\n') for line in lines]

why not just:

lines = [line.rstrip('\n') for line in lines]


what's the difference between lines[:] and lines here? Thanks.

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[mailto[email protected]] ´ú±í Gabriel
Genellina
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Ö÷Ìâ: Re: how to remove \n in the list

En Mon, 14 Apr 2008 01:41:55 -0300, reetesh nigam

hi,
l=['5\n', '2\n', '7\n', '3\n', '6\n']

how to remove \n from the given list

l is is very poor name... I'll use lines instead:

lines[:] = [line.rstrip('\n') for line in lines]

 

[Eric Brunel]

(please avoid top-posting... corrected)

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[mailto[email protected]] 代表 Gabriel
Genellina
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主题: Re: how to remove \n in the list

En Mon, 14 Apr 2008 01:41:55 -0300, reetesh nigam

hi,
l=['5\n', '2\n', '7\n', '3\n', '6\n']

how to remove \n from the given list

l is is very poor name... I'll use lines instead:

lines[:] = [line.rstrip('\n') for line in lines]
---

why not just:

lines = [line.rstrip('\n') for line in lines]


what's the difference between lines[:] and lines here? Thanks.
Compare:

lines = ['5\n', '2\n', '7\n', '3\n', '6\n']
lines2 = lines
lines = [line.rstrip('\n') for line in lines]
lines ['5', '2', '7', '3', '6']
lines2

['5\n', '2\n', '7\n', '3\n', '6\n']

with:

lines = ['5\n', '2\n', '7\n', '3\n', '6\n']
lines2 = lines
lines[:] = [line.rstrip('\n') for line in lines]
lines ['5', '2', '7', '3', '6']
lines2

['5', '2', '7', '3', '6']

Assigning to lines[:] changes the original list. Assigning to lines
rebinds the name to the result of the list comprehension, but doesn't
affect the original list.

HTH