Find All Occurrences of a Substring in a String in Python 1

Find All Occurrences of a Substring in a String in Python

import re 
 
# defining string  
str1 = "This dress looks good; you have good taste in clothes."
 
#defining substring 
substr = "good"
 
print("The original string is: " + str1) 
 
print("The substring to find: " + substr) 
 
result = [_.start() for _ in re.finditer(substr, str1)] 
 
print("The start indices of the substrings are : " + str(result))

# Output - 
# The original string is: This dress looks good; you have good taste in clothes.
# The substring to find: good
# The start indices of the substrings are : [17, 34]

Here is what the above code is Doing:
1. We have defined a string str1 and a substring substr.
2. We have used the re.finditer() method to find all the indices of the substring in the string.
3. We have used a list comprehension to extract the start indices of the substrings.
4. We have printed the result.

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