python finditer code example
Example 1: re python3
import re
>>> m = re.search('(?<=abc)def', 'abcdef')
>>> m.group(0)
'def'
Example 2: python re.search()
match = re.search(r'bb', 'aabbcc')
match = re.search(r'cd', 'aabbcc')
match = re.search(r'...c', 'aabbcc')
match = re.search(r'\d\d\d', 'p123g')
match = re.search(r'\w\w\w', '@@abcd!!')
Example 3: find in python
def find_all_indexes(input_str, search_str):
l1 = []
length = len(input_str)
index = 0
while index < length:
i = input_str.find(search_str, index)
if i == -1:
return l1
l1.append(i)
index = i + 1
return l1
s = 'abaacdaa12aa2'
print(find_all_indexes(s, 'a'))
print(find_all_indexes(s, 'aa'))