Question

Please help with this python assignment. Thank you.

question 1

Write a Python program to read a file line by line store it into a variable.

question 2

Write a Python program to read a file line by line store it into an array.

question 3

Write a python program to find the longest words.

question 4

Write a Python program to count the number of lines in a text file.

question 5

Write a Python program to count the frequency of words in a file.

Answer 1

Answer:

Explanation:

here are the codes for all the part from 1 to 5 separately.

File functions have been used, that are, read(), readline(), readlines() , etc.

Other basic functions like len() , range() are also used.

feel free to comment if you need any help!

Ques 1:

Code:

filename = input("Enter filename: ")

f = open(filename, 'r')

data = ''

line = f.readline()

while(line):
data = data+line
line = f.readline()
print(data)

filename input("Enter filename: ") f = open(filename, 'r') data line f.readline) while(line): data data+line line f.readline) print(data)

Output:

Enter filename: file.txt first line second line ...Program finished with exit code 0 Press ENTER to eyit console

Ques 2:

Code:

filename = input("Enter filename: ")

f = open(filename, 'r')

lines = f.readlines()

print(lines)

filename input("Enter filename: ") f open(filename, 'r') data lines f.readlines) print(lines)

Output:

Enter filename: file.txt ['first line\n', 'second line'] ...Program finished with exit code 0 Press ENTER to exit console.

Ques 3:

Code:

filename = input("Enter filename: ")

f = open(filename, 'r')

words = f.read().split()

max_w = words[0]

print("Longest words are:")
for word in words:
if(len(word)>len(max_w)):
max_w = word

for word in words:
if(len(max_w)==len(word)):
print(word)

filename = input("Enter filename: ") f = open(filename, 'r') data = words = f.read().split() max_w = words[@] print("Longest words are:") for word in words: if(len (word)>len (max_w)): max_W = word ولا for word in words: if(len (max_w) ==l en (word)): print(word) الينا

Output:

Enter filename: file.txt Longest words are: second thirdd ..Program finished with exit code 0 Press ENTER to exit console.

Ques 4:

Code:

filename = input("Enter filename: ")

f = open(filename, 'r')

lines = f.readlines()

print("Number of lines:", len(lines))

filename = input("Enter filename: f = = open(filename, 'r') data lines = f.readlines (1) print("Number of lines:", len(lines))||

Output:

Enter filename: file.txt Number of lines: 3 Program finished with exit code 0 Press ENTER to exit console. I

Ques 5:

Code:

filename = input("Enter filename: ")

f = open(filename, 'r')

words_freq = {}

lines = f.read().split()

for i in range(len(lines)):
lines[i] = lines[i].strip()
if lines[i] in words_freq:
words_freq[lines[i]] = words_freq[lines[i]]+1
else:
words_freq[lines[i]] = 1

print(words_freq)

filename input("Enter filename: ") f open(filename, 'r') words_freq { } lines f.read().split() for i in range(len(lines )): lines[i] lines[i].strip) if lines[i] in words_freq: words_freq[lines[i]] words_freq[lines[i]]+1 else: words_freq[lines[i]] = 1 print(words_freq)

Output:

7 Enter filename: file.txt {'second': 1, 'thirdd': 1, 'line': 3, 'first': 1} ...Program finished with exit code 0 Press ENTER to exit console.

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