Le Fri, 6 Feb 2009 12:30:31 +0530,
jitendra gupta <jitu.ic...@gmail.com> a écrit :
> > #BEGIN
> > my_input = "one two three four five six seven eight nine ten"
> > text = my_input.split()
> > for i,v in enumerate(text):
> > line = text[i-3], text[i-2], text[i-1], v, text[i+1], text[i+2],
> > text[i+3]
> > print line
> > # END
You do not need enumerate in that case:
offset = 3 # constant
my_input = "one two three four five six seven eight nine ten"
words = my_input.split()
for i in range(offset, len(words)-offset):
# beware of right-open range:
slice = [word for word in words[i-offset : i+offset+1]]
print i,slice
==>
3 ['one', 'two', 'three', 'four', 'five', 'six', 'seven']
4 ['two', 'three', 'four', 'five', 'six', 'seven', 'eight']
5 ['three', 'four', 'five', 'six', 'seven', 'eight', 'nine']
6 ['four', 'five', 'six', 'seven', 'eight', 'nine', 'ten']
Adapt using a 'guard' based on offset's value if you actually want all lines.
Denis
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la vida e estranya
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