please can you help with this code

def normalize(s: str) -> str:

"""

Given a string, return a copy of that string with

all alphabetical characters turned lowercase and

all special characters removed and replaced with a space.

>>> normalize("Hey! How are you? I'm fine. ;D")

'hey how are you i m fine d'

"""

s = s.lower()

n = ""

for c in s:

if c.isalpha():

n = n + c

else:

n = n + " "

return n

def get_words(filename: str) -> str:

"""

Given the name of a file which contains many words

(one word per line), return a list of all these words.

The file may have comments and a blank space at the beginning

of the file, which should be ignored. All comment lines start with

a semicolon ';'.

"""

words = []

with open(filename, 'r') as file:

for line in file.readlines():

if line[0] == ';' or line.strip() == '':

continue

words.append(line.strip().lower())

return words

def analyze_word(word: str, pos_words: List[str], neg_words: List[str]) -> int:

"""

Given a word, a list of positive words (all in lowercase),

and a list of negative words (all in lowercase), return whether

or not the word is positive, negative or neutral.

For a positive word, return 1.

For a negative word, return -1.

For a neutral word (one that does not appear in either the

negative words list nor the positive words list), return 0.

>>> ("happy", ['happy', 'love'], ['sad', 'angry'])

1

>>> ("angry", ['happy', 'love', 'joy'], ['sad', 'angry', 'bad'])

-1

>>> ("LOVE", ['happy', 'love', 'joy'], ['sad', 'angry', 'bad'])

1

>>> ("sAd", ['happy', 'love', 'joy'], ['sad'])

-1

>>> ("okay", ['happy', 'love', 'joy'], ['sad', 'angry'])

0

"""

word = word.strip().lower()

if word in pos_words:

return 1

elif word in neg_words:

return -1

else:

return 0

def analyze_file(filename: str, pos_words: List[str], neg_words: List[str]) -> int:

"""

Given the name of a file, a list of positive words (all in lowercase),

and a list of negative words (all in lowercase), return some interesting

data about the file in a tuple, with the first item in the tuple being

the positivity score of the contents of this file, and the rest of the items

being whatever else you end up analyzing. (Helper functions are highly

encouraged here.)

How to calculate positivity score:

For every word that is pos itive in the file (based on the words

in the list of positive words) add 1

to the score. For every negative word (based on the list

of negative words), subtract 1 from the score. Any neutral

words (those that do not appear in either list) do

not affect the score in any way.

"""

pass

if __name__ == "__main__":

positives = "positive_words.txt"

negatives = "negative_words.txt"

s = input("Enter a filename: ")

pos_words = get_words(positives)

neg_words = get_words(negatives)

data = analyze_file(s, pos_words, neg_words)

if data[0] < 0:

print("Overall feeling: :(")

elif data[0] > 0:

print("Overall feeling: :)")

else:

print("Overall feeling: :|")

# TO DO: WRITE CODE BELOW TO DISPLAY RESULTS FOR THE OTHER DATA

# THAT YOU ANALYZED AS WELL