Question

value = ["python:guru-age20",
         "is_it_possible_time100:goodTime99",
         "hmm_hope_no_onecanansswer"]

How to get a particular string from this list of strings? I need to find goodTime99 from the li[1] string and its exact postion

if value.find("goodTime99") != -1: I know will work if I give the entire string is_it_possible_time100:goodTime99.

Otherwise how to exact the position by searching goodTime99 instead of searching for is_it_possible_time100:goodTime99? value.index("goodTime99") is giving an error.

I am not looking for whole string to search, value.index("is_it_possible_time100:goodTime99") is fine but I don’t want this. Anyway to do this?

Answer 1

If you only want to check for the presence of "goodTime99" in any string in the list, you could try:

value = ["python:guru-age20", "is_it_possible_time100:goodTime99","hmm_hope_no_onecanansswer"]
if any("goodTime99" in s for s in value):
    # found it

If you need the exact position:

>>> next((i for i, s in enumerate(value) if "goodTime991" in s), -1)
1

or:

def find_first_substring(lst, substring):
    return next((i for i, s in enumerate(lst) if substring in s), -1)

>>> find_first_substring(value, "goodTime99")
1