Get partial string with other string

Question

I don't know how to do something like this in python:

I have a string s = 'windows 95 is not a windows nt operating system', and I want to get string that contains 'nt' and a number of nearby letters, including spaces.

Expected output for 7 nearby letters:

'indows nt operat'

If it is impossible, then is it possible to get the index of a string I want to find like this:

>>> s = 'windows xp horray'
>>> stringtofind = 'hor'

Expected output:

11, 12, 13

Where I only want to get 11 because it is the start."

Is this possible?

Does this answer your question? [Python Regex - How to Get Positions and Values of Matches](https://stackoverflow.com/questions/250271/python-regex-how-to-get-positions-and-values-of-matches) — voiDnyx, Dec 18 '19 at 10:06

score 2 · Accepted Answer · answered Dec 18 '19 at 10:06

2

Use str.find with slicing.

Ex:

s = 'windows 95 is not a windows nt operating system'
to_find = 'nt'
print(s[s.find(to_find)-7:s.find(to_find)+ 7]) 
# --> indows nt oper

answered Dec 18 '19 at 10:06

Rakesh

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score 0 · Answer 2 · answered Dec 18 '19 at 10:08

0

position = S.index("nt")
S.[position-7:position+7]

answered Dec 18 '19 at 10:08

Magellan88

2,543
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score 0 · Answer 3 · answered Dec 18 '19 at 10:16

I would suggest using find() to get the index of the substring in the main string and then get the part that you want:

s = 'windows 95 is not a windows nt operating system'
substr = 'nt'
index = s.find(substr)
result = s[index-7: index+len(substr)+7]
print(result)

Get partial string with other string

3 Answers3