how to slice string from specific string in python

Question

ok, so lets say I have

s = 'ABC Here DEF GHI toHere JKL'

and I want to get a new string with only the string between Here and toHere

new_str = 'DEF GHI'

(I dont know how many or which chars I have before Here or any where else) I just know that I have Here and toHere in the string. how can I get the new_str?

`import re;print(re.findall("Here(.*)toHere",target_string))` ... I guess — Joran Beasley, Oct 10 '18 at 19:14

score 5 · Answer 1 · answered Oct 10 '18 at 19:19

5

The simplest way is to use slicing:

s[s.find('Here') + len('Here') : s.find('toHere')]
#' DEF GHI '

You can .strip() off the white space from the result if you want.

answered Oct 10 '18 at 19:19

DYZ

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thanks a lot! thats what I have been searching for – Daniel Segal Oct 10 '18 at 19:23

mad_ · Answer 2 · 2018-10-10T19:48:40.480

1

This might be useful using index

str1 = 'ABC Here DEF GHI toHere JKL' 
try:
    start=str1.index('Here')+len('Here')
    end=str1.index('toHere')

    print(str1[start:end].strip())
except ValueError:
    print('Either of the substring not found')

edited Oct 10 '18 at 19:48

answered Oct 10 '18 at 19:19

mad_

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score 0 · Answer 3 · answered Oct 10 '18 at 19:20

You can use enumerate and .split() to grab the proper indexes for your new slice, then ' '.join() that new slice

s = 'ABC Here DEF GHI toHere JKL'
s = s.split()
for i, v in enumerate(s):
    if v == 'Here':
        start = i + 1
    if v == 'toHere':
        end = i
print(' '.join(s[start:end]))
# DEF GHI

score 0 · Answer 4 · answered Oct 10 '18 at 19:26

0

the simplest way is to use splitting (imho)

print(s.split("Here",1)[-1].split("toHere",1)[0])

of coarse if Here is not present or toHere is not present it will not work how you expect (it will suffer the same consequences as the other solutions)

answered Oct 10 '18 at 19:26

Joran Beasley

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how to slice string from specific string in python

4 Answers4