I dont know, it was just playing yahtzee. More then likely I will use docstrings for my projects.

yahtzee.py

@@ -1,15 +1,15 @@
 from die import Die
 
 class Yahtzee:
-    """A command-line Yahtzee game.
-    This version of Yahtzee is initialized with a list of goals.
-    """
+    """A command-line Yahtzee game."""
     def __init__(self, goals):
+        """Initialize the game with score 0, goals, and five dice."""
         self.score = 0
         self.goals = goals
         self.dice = [Die() for num in range(5)]
 
     def play(self):
+        """Run the main game loop until all goals are used, then print final score."""
         print("Welcome to Yachtzee!")
         self.score = 0
         for goal in self.goals:
@@ -19,6 +19,7 @@ class Yahtzee:
         print(f"Your final score was {self.score}")
 
     def play_round(self):
+        """Play one round: roll dice, choose a goal, and add its score."""
         print("=" * 80)
         self.rolls_left = 3
         for die in self.dice:
@@ -29,10 +30,12 @@ class Yahtzee:
         self.score += goal.score(self.dice)
 
     def show_status(self):
+        """Display current score, rolls left, and dice faces."""
         dice = ', '.join([str(die) for die in self.dice])
         print(f"Score: {self.score}. Rolls left: {self.rolls_left}. Dice: {dice}.")
 
     def choose_goal(self):
+        """Prompt player to choose a goal or reroll, return the chosen goal."""
         options = []
         unused_goals = self.get_unused_goals()
         for goal in unused_goals:
@@ -49,6 +52,7 @@ class Yahtzee:
             return unused_goals[choice]
 
     def get_choice(self, options):
+        """Prompt user to select from options, validate input, and return index."""
         print("What would you like to do?")
         for i, option in enumerate(options):
             print(f"{i}. {option}")
@@ -59,6 +63,7 @@ class Yahtzee:
         return int(choice)
 
     def option_choice_is_valid(self, choice, options):
+        """Return True if choice is a valid digit index within options range."""
         if not choice.isdigit():
             return False
         if int(choice) < 0:
@@ -68,9 +73,11 @@ class Yahtzee:
         return True
 
     def count_unused_goals(self):
+        """Return the number of unused goals."""
         return len(self.get_unused_goals())
 
     def get_unused_goals(self):
+        """Return a list of all unused Goal objects."""
         unused_goals = []
         for goal in self.goals:
             if not goal.used:
@@ -78,6 +85,7 @@ class Yahtzee:
         return unused_goals
 
     def reroll(self):
+        """Decrement rolls_left, get player's choices, and reroll selected dice."""
         self.rolls_left -= 1
         choices = self.get_reroll_choices()
         dice_to_reroll = self.get_dice_to_reroll(choices)
@@ -85,6 +93,7 @@ class Yahtzee:
             die.roll()
 
     def get_dice_to_reroll(self, choice_ints):
+        """Return Die objects whose faces match the provided choice_ints."""
         dice_to_reroll = []
         for die in self.dice:
             if die.face in choice_ints:
@@ -93,6 +102,7 @@ class Yahtzee:
         return dice_to_reroll
 
     def get_reroll_choices(self):
+        """Prompt user for dice to reroll, validate, and return list of face values."""
         print("Which dice do you want to re-roll?")
         choices = input("> ")
         while not self.reroll_choices_are_valid(choices):
@@ -102,6 +112,7 @@ class Yahtzee:
         return choice_ints
         
     def reroll_choices_are_valid(self, choices_str):
+        """Return True if choices_str contains only digits matching current dice faces."""
         if not choices_str.isdigit():
             return False
         choice_ints = [int(digit) for digit in choices_str]
@@ -109,3 +120,4 @@ class Yahtzee:
             if die.face in choice_ints:
                 choice_ints.remove(die.face)
         return len(choice_ints) == 0
+