Your program should be able to read a file and then counts the word frequencies as well as the letter frequencies. Results should be stored in the two global variables. You will need at least 4 functions where one is already given:

cleanupLine(line)

- accepts one line and removes characters that are not needed. Unwanted characters are all characters except a-z, A-Z, 0-9 and '. They should be replaced with a space.

Samples:

long-term -> long term

It's amazing, isn't it? -> It's amazing isn't it

countWords(line)

- For a stripped line, this function counts the words and updates the global variable wordsDict{}. For instance, the line "Hello hello World" should update wordsDict to {'hello' : 2, 'world' : 1}.

Note, we convert upper case letters to lower case

countLetters(line)

- For a stripped line, this function counts the letters and updates the global variable lettersDict{}. For instance, "hell" should update to lettersDict {'h' : 1, 'e' : 1, 'l' : 2}

Note, we convert upper case letters to lower case.

Note2, numbers and ' should be ignored"""

Please process the textfiles on your machine and then have a last function named results() returning a list with the frequencies as follows:

e for file1, t for file2 and w for file3 followed by the frequency of

"to" for file1, "the" for file2 and "computer" for file3.

wordsDict = {}

lettersDict = {}

def cleanupLine(line):

"""this function will remove characters that are not needed from the line-string. Unwanted characters are all characters except a-z, A-Z, 0-9 and ' and should be replaced with a space

long-term -> long term

It's amazing, isn't it? -> Is's amazaing isn't it

Note, if you are familiar with regex, you can use that, otherwise a loop is fine"""

stripped_line = ""

return stripped_line

def countWords(line):

"""For a stripped line, this function counts the words and updates

the globla variable wordsDict{}.

Note, we convert upper case words to lower case words"""

global wordsDict

return wordsDict

def countLetters(line):

"""For a stripped line, this function counts the letters and updates

the globla variable lettersDict{}.

Note, we convert upper case letters to lower case

Note2, numbers and ' should be ignored"""

global lettersDict

return lettersDict

def readFile(filename):

handle = open(filename, 'r')

for line in handle:

stripped_line = cleanupLine(line)

countWords(stripped_line)

countLetters(stripped_line)

def results():

return [0,0,0,0,0,0]

readfile("text1.txt")

print(lettersDict['e'])

note : i can not upload text file here so u can create ant text file for test . i need code for python V3.x