##### ###### ##### ### # # ### # # ###### ## ## ## ## ## ## ## # # # # # ## ##### #### ##### # # # # # # # #### ## # ## ## ## ## # # # # # ## ## # ###### ## ### # ### # ######
##### ###### ##### ### # # ### # # ###### ## ## ## ## ## ## ## # # # # # ## ##### #### ##### # # # # # # # #### ## # ## ## ## ## # # # # # ## ## # ###### ## ### # ### # ######
summary
Two lessons: Dictionaries are perfect for counting. Keys are the items, values are the counts.
The get(key, default) pattern handles missing keys cleanly. No need for if-else. This pattern appears everywhere: counting characters in a string, counting votes, counting any repeated items. learn it.
