Is there any way using regular expression to capture this group. result should be 2

Question

import re 

pattern = r'faf'

string = 'fafaf'

print(len(re.findall(pattern, string)))

it is giving the answer as 1, but required answer is 2

Answer 1

You want to use a positive lookahead r"(?=(<pattern>))" to find overlapping patterns:

import re

pattern = r"(?=(faf))"
string = "fafaf"
print(len(re.findall(pattern, string)))

You can test regexes here: https://regex101.com/r/3FxCok/1