Question

•Write use pytohn a function File2List(filename) that:

–Read line by line from a file

–For each line of words,

–change all characters to lowercase

–remove all the punctuations

–remove whitespaces except the blank – ‘ ’

–split the words within the line by the blank and form a list of separated words

–Merge all the list of separated words together and the function should return a wordlist of individual words

Answer 1

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Solution :-

Python Code :-

# function returns resultant list

def File2List(fileName):

file = open(fileName, "r")

#list to store final merged lists

Result = []

# read the file line by line

f = file.readlines()

for x in f:

print("\ncurrent line :-\n" + x)

temp = x

temp = temp.lower() #lower the string characters if any

for ch in x:

# check for any punctuation and remove it from the line

if (not(ch.isalpha()) and not(ch.isdigit()) and not(ch.isspace())):

temp = temp.replace(ch,'',1)

#split the line and store in list

List = temp.split()

print("current List :- ")

print(List)

#merge list with the resultant list

Result = Result + List

return Result

List = File2List("input.txt")

#print resultant list

print("\nResultant list :-")

print(List)

Input file input.txt :-

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Screenshot for the code and sample input/output :-