python return first list element that contains substring
# Example usage:
your_list = ['The answer to', 'the ultimate question', 'of life',
'the universe', 'and everything', 'is 42']
[idx for idx, elem in enumerate(your_list) if 'universe' in elem][0]
--> 3 # The 0-based index of the first list element containing "universe"python find all elements of substring in string
def find_all(a_str, sub):
start = 0
while True:
start = a_str.find(sub, start)
if start == -1: return
yield start
start += len(sub) # use start += 1 to find overlapping matches
list(find_all('spam spam spam spam', 'spam')) # [0, 5, 10, 15]Copyright © 2021 Codeinu
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