How do you do 3 and 4 in Python? I have also attached some resources def main():# Prompt the user to enter a filefilename =input ("Enter a filename: ").strip()infile = open(filename, "r") # Open the filewordCounts = {} # Create an empty dictionary to count wordsfor line in infile:processLine (line.lower ( ), wordCounts)pairslist(wordCounts.items(O) # Get pairs from the dictionaryitems = [[x, y] for (y, x) in pairs] # Reverse pairs in the listitems.sort() # Sort pairs in itemsfor i in range(len(items) - 1, len (items) - 11, -1):print(items[i][1] + "\t" + str(items[i][0]))# Count each word in the linedef processLine(line, wordCounts):line = replacePunctuations(line) # Replace punctuations with spacewords = line.split() # Get words from each linefor word in words:if word in wordCounts:wordCounts[word] += 1else:wordCounts[word] = 1# Replace punctuations in the line with spacedef replacePunctuations (line):for ch in line:if ch in "~@#$%^&* ( ) _-+=~<>?/,.;:!{}[]|'\"":line =line.replace (ch,%3D")return linemain() # Call the main function 3. Write a program called alice_words.py that creates a text file named alice_words.txt containingan alphabetical listing of all the words, and the number of times each occurs, in the text versionof Alice's Adventures in Wonderland. (You can obtain a free plain text version of the book,along with many others, from http://www.gutenberg.org.) The first 10 lines of your output fileshould look something like this:WordCount=====a631а -pieceabide11kproject.net/thinkcs/python/english3e/dictionaries.html[1/4/2012 9:38:26 PM]S- How to Think Like a Computer Scientist: Learning with Python 3able1about94above3absence1absurd2How many times does the word, alice, occur in the book?4. What is the longest word in Alice in Wonderland? How many characters does it have?

we have provided required code in Python

3. Write a program called alice_words.py that creates a text file named alice_words.txt containing an alphabetical listing of all the words, and the number of times each occurs, in the text version of Alice's Adventures in Wonderland. (You can obtain a free plain text version of the book, along with many others, from http://www.gutenberg.org.) The first 10 lines of your output file should look something like this: Word Count === a 631 a-piece abide 1 1 net/thinkcs/python/english3e/dictionaries.html[1/4/2012 9:38:26 PM] to Think Like a Computer Scientist: Learning with Python 3 able 1 about 94 above absence 1 absurd How many times does the word, alice, occur in the book? 4. What is the longest word in Alice in Wonderland? How many characters does it have?

3. Write a program called alice_words.py that creates a text file named alice_words.txt containing an alphabetical listing of all the words, and the number of times each occurs, in the text version of Alice's Adventures in Wonderland. (You can obtain a free plain text version of the book, along with many others, from http://www.gutenberg.org.) The first 10 lines of your output file should look something like this: Word Count === a 631 a-piece abide 1 1 net/thinkcs/python/english3e/dictionaries.html[1/4/2012 9:38:26 PM] to Think Like a Computer Scientist: Learning with Python 3 able 1 about 94 above absence 1 absurd How many times does the word, alice, occur in the book? 4. What is the longest word in Alice in Wonderland? How many characters does it have?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

How do you do 3 and 4 in Python? I have also attached some resources

def main():
# Prompt the user to enter a file
filename =
input ("Enter a filename: ").strip()
infile = open(filename, "r") # Open the file
wordCounts = {} # Create an empty dictionary to count words
for line in infile:
processLine (line.lower ( ), wordCounts)
pairs
list(wordCounts.items(O) # Get pairs from the dictionary
items = [[x, y] for (y, x) in pairs] # Reverse pairs in the list
items.sort() # Sort pairs in items
for i in range(len(items) - 1, len (items) - 11, -1):
print(items[i][1] + "\t" + str(items[i][0]))
# Count each word in the line
def processLine(line, wordCounts):
line = replacePunctuations(line) # Replace punctuations with space
words = line.split() # Get words from each line
for word in words:
if word in wordCounts:
wordCounts[word] += 1
else:
wordCounts[word] = 1
# Replace punctuations in the line with space
def replacePunctuations (line):
for ch in line:
if ch in "~@#$%^&* ( ) _-+=~<>?/,.;:!{}[]|'\"":
line =
line.replace (ch,
%3D
")
return line
main() # Call the main function

3. Write a program called alice_words.py that creates a text file named alice_words.txt containing
an alphabetical listing of all the words, and the number of times each occurs, in the text version
of Alice's Adventures in Wonderland. (You can obtain a free plain text version of the book,
along with many others, from http://www.gutenberg.org.) The first 10 lines of your output file
should look something like this:
Word
Count
=====
a
631
а -piece
abide
1
1
kproject.net/thinkcs/python/english3e/dictionaries.html[1/4/2012 9:38:26 PM]
S- How to Think Like a Computer Scientist: Learning with Python 3
able
1
about
94
above
3
absence
1
absurd
2
How many times does the word, alice, occur in the book?
4. What is the longest word in Alice in Wonderland? How many characters does it have?

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