Adding assessment

assessment.md

@@ -0,0 +1,57 @@
+# Dice Lab Assessment
+
+Everything works as expected. Nice work!
+
+## Comments
+
+I thought your observation that "This method of problem solving is more 
+organized than how I would have written a Yahtzee program using
+my past experience" was interesting. I agree, though it's certainly possible to write 
+OOP badly, and thereby increase the complexity of a problem :) 
+I find that I increasingly think deeply about whether to use an OO approach
+or a functional approach--basically, whether to focus on nouns or verbs.
+
+Your decision to count 3- and 4-of-a-kind with a zero-initialized
+dict works well:
+
+```
+of_each_counter={1:0, 2:0, 3:0, 4:0, 5:0, 6:0}
+```
+
+Two alternatives from the standard library are worth keeping in mind for 
+the future. A Counter just takes a list and counts instances of each value.
+
+```
+>>> from collections import Counter
+>>> counter = Counter([1, 3, 3, 5, 3])
+>>> print(counter)
+Counter({3: 3, 1: 1, 5: 1})
+```
+
+A defaultdict is like a normal dict, but when you first access a key, its value is
+initialized for you if it's not already present. 
+
+``` 
+>>> from collections import defaultdict
+>>> counts = defaultdict(int)
+>>> for face in die_faces:
+...     counts[face] += 1
+```
+    
+Another "pythonic" trick would be available for GoalYahtzee, where you check whether
+all the dice faces are the same:
+
+```
+for die in dice:
+    if die!=dice[0].face:
+        flag=False
+```
+
+In this case, I'll often convert the list into a set, which enforces member uniqueness.
+
+```
+unique_faces = set(dice)
+if len(unique_faces) == 1:
+    print("Yahtzee!")
+```
+