README.md

Implement a function that outputs the Look and Say sequence:

1
11
21
1211
111221
312211
13112221
1113213211
31131211131221
13211311123113112211

look_any_say.py

import itertools

def look_any_say(num):
    result = ""
    
    for n, amount in itertools.groupby(str(num)):
        result += f"{len(list(amount))}{n}"

    return int(result)

import unittest
class TestSpiralMethods(unittest.TestCase):
    def test_one(self):
        self.assertEqual(look_any_say(1), 11)

    def test_two(self):
        self.assertEqual(look_any_say(11), 21)

    def test_big(self):
        self.assertEqual(look_any_say(31131211131221), 13211311123113112211)


unittest.main(exit=False)