Python Program to retrieve all words having 5 characters length.

import re
str = 'one two three four five six seven 8 9 10'

result = re.findall(r'\b\w{5}\b' , str)
print(result)

Ouptut:
['three', 'seven']

instead of using the findall() method,

if we use the search() method,

it will return the first occurrence of the result only.