alphabet = "abcdefghijklmnopqrstuvwxyz"

test_dups = ["zzz","dog","bookkeeper","subdermatoglyphic","subdermatoglyphics"]

test_miss = ["zzz","subdermatoglyphic","the quick brown fox jumps over the lazy dog"]

# From Section 11.2 of:

# Downey, A. (2015). Think Python: How to think like a computer scientist. Needham, Massachusetts: Green Tree Press.

def histogram(s):

d = dict()

for c in s:

if c not in d:

d[c] = 1

else:

d[c] += 1

return d

def duplicates_test(string):

dict = histogram(string)

for key, value in dict.items():

if value > 1:

return True

return False

def miss_test(str):

missingletters = []

dict = histogram(str)

for l in alphabet:

if l not in dict:

missingletters.append(l)

missingletters.sort()

return "".join(missingLettersList)

print("Checking for the duplicate letters")

for str in test_dups:

if duplicates_test(str):

print(str+": has duplicates")

else:

print(str+": has no duplicates")

print(" Checking for the missing_letters ")

for i in test_miss:

string = missing_letters(i.replace(" ",""))

if string!="":

print(lTm+" is missing letters "+string)

else:

print(lTm +" uses all the letters")

Output:

Checking for the duplicate letters zzz: has duplicates dog: has no duplicates bookkeeper: has duplicates subdermatoglyphic: has no duplicates subdermatoglyphics: has duplicates

Checking for the missing_letters Traceback (most recent call last): File "c:\Users\blank\OneDrive\Desktop\For college\Assignment in Unit 7 Prog.py", line 45, in string = missing_letters(i.replace(" ","")) NameError: name 'missing_letters' is not defined

PLEASE HELP ME FIX IT. WHEN I TRIED TO RUN THE PROGRAM, I GOT AN ERROR.

WHAT CODE SHOULD I PUT IN TO FIX IT?