from collections import defaultdict

# Creating a dictionary
car = {
  "brand": "Ford",
  "model": "Mustang",
  "year": 1964
}

print(car["brand"])

print(car["model"])

'''
car["yue"]
Traceback (most recent call last):
  File "<pyshell#6>", line 1, in <module>
    car["yue"]
KeyError: 'yue'
'''

from collections import defaultdict
# Missing keys default to 0
counts = defaultdict(int)
words = ['apple', 'banana', 'apple', 'orange', 'banana', 'apple']

for word in words:
    counts[word] += 1

print(counts['apple'])   # Output: 3
print(counts['grapes'])  # Output: 0 (No KeyError!)

counts_dict = {}

# modify the for loop to count using a regular dict, counts_dict.
for word in words:
    #   counts_dict[word] = counts_dict[word] + 1
    if word in counts_dict:
        counts_dict[word] += 1
    else: 
        counts_dict[word] = 1
    
print(f"counts_dict: {counts_dict}")

anagram_dict['acer']: ['acre', 'care', 'race']