How to check if list contains any item from list in python

Question

i am trying to check and print if following list contains specific string or substring using Python,

This is my input

[
  [
    "SessionTimeOut: Request reach to it's max time. {'VwasKXznXVVzYU6iAAAB': None} were registered but ['192.168.2.2', '192.168.2.3'] were expected."
  ],
  [
    "CommonException: element with 'id' was not found"
  ],
  [
    "JenkisException: Element missing because service was down"
  ]
]

Now i want to get the output string if it contains

"SessionTimeOut: Request reach to it's max time.

I am able to check it this way

print('SessionTimeOut: Request reach to it's max time.' in str(response['data']))

It returns True but i also want that complete string I am able to print that as response['data'][0][0] this is not a good idea.

I want to printout the complete string dynamically which contains that text, How can i achieve this. Thank you.

The most obvious answer would be two nested `for` loops, but I'm quite sure there is a more "pythonic" way to do that. — Haroldo_OK, Aug 10 '22 at 10:03
It could become easier if you flatten the list first: https://stackoverflow.com/questions/120886/python-idiom-to-chain-flatten-an-infinite-iterable-of-finite-iterables — Haroldo_OK, Aug 10 '22 at 10:06

funnydman · Answer 1 · 2022-08-10T11:00:20.883

1

How about using any built-in and itertools.chain:

from itertools import chain

data = [
    [
        "SessionTimeOut: Request reach to it's max time. {'VwasKXznXVVzYU6iAAAB': None} were registered but ['192.168.2.2', '192.168.2.3'] were expected."
    ],
    [
        "CommonException: element with 'id' was not found"
    ],
    [
        "JenkisException: Element missing because service was down"
    ]
]

string_to_search = "SessionTimeOut: Request reach to it's max time."
print(any(string_to_search in obj for obj in chain(*data)))

If you want to return that specific string:

print([obj for obj in chain(*data) if string_to_search in obj][0])

Ouptut:

True

edited Aug 10 '22 at 11:00

answered Aug 10 '22 at 10:06

funnydman

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Yes this is returning true, May be my question was not clear i want to print that specific string which contains string to search text. I am already getting true or false using this `'print(''SessionTimeOut: Request reach to it's max time.'' in str(response['data']))` but i want to print out that specific string which contains this. – Zain Aug 10 '22 at 10:56
@Zain I've updated the answer, can you check? – funnydman Aug 10 '22 at 11:00
Yes that's working fine,Thank you. I just want to know that can't i do with the approach i used in my question? – Zain Aug 10 '22 at 11:05
@Zain, at least you need to iterate over all lists in data and check string occurrence. – funnydman Aug 10 '22 at 11:08
Here we again giving the index `[0]` which is not will work if the index is different. – Zain Aug 10 '22 at 12:13
The solution i wrote in my question is also giving me the results if i give index, So looking for something dynamic. @funnydman – Zain Aug 10 '22 at 12:14
@Zain what do you mean by more dynamic? – funnydman Aug 10 '22 at 14:20

How to check if list contains any item from list in python

1 Answers1