Question

In the given dictionary, each key is a single lowercase letter and each value is a list of lowercase words that start with that letter. Based on the given dictionary, return a new dictionary in which each key is a single lowercase letter and each value is the number of lowercase words that start with that letter.'''

is this right if i am writing like this ?
def get_letter_counts(old_dict):
new_dict = {}
for letters in old_dict:
for words in letters:
word_num = len(words)+1

new_dict[letters] = word_num

return new_dict

Answer 1

Close. But you didn't need any sort of inner loop. "for letters in old_dict" should actually be "for letter(singular) in old_dict" because during each iteration you are only dealing with a single letter. Once you have this single letter all you need to do is take the length of old_dict[letter] and store it to new_dict[letter].
Try this:

def get_letter_counts(old_dict):
new_dict = {}
for letter in old_dict:
new_dict[letter] = len(old_dict[letter])
return new_dict