People.get('e', 0) tells python to search for the key 'e' from the dictionary. If it isn't really located it returns 0. Since That is The very first time 'e' is handed with the loop, the character 'e' is not present in the dictionary but, Hence the get method returns 0. https://beckettdlmqq.blogolenta.com/33447127/helping-the-others-realize-the-advantages-of-copyright-vape-pen