identify strings letters between other strings in python

main.py
my_string = "Hello world, how are you doing today?"

# Find the index of the first occurrence of "world" in the string
start_index = my_string.index("world")

# Find the index of the first occurrence of "doing" in the string
end_index = my_string.index("doing")

# Extract the substring between the two indices
letters_between = my_string[start_index+len("world"):end_index]

print(letters_between) # Output: ", how are you "
426 chars
13 lines

main.py
import re

my_string = "Hello world, how are you doing today?"

# Define a pattern to match the letters between "world" and "doing"
pattern = r"world(.*?)doing"

# Use re.search to find the first match of the pattern in the string
match = re.search(pattern, my_string)

if match:
    # Extract the letters between "world" and "doing" from the first match
    letters_between = match.group(1)
    print(letters_between) # Output: ", how are you "
446 chars
15 lines