Predict the output of the following code:

def express (x, n) :
    if n == 0:
        return 1
    elif n % 2 == 0:
        return express (x*x, n/2) 
    else:
        return x * express (x, n-1) 
express (2, 5)

Predict the output of the following code:

def Changer(P, Q = 10):
    P = P / Q
    Q = P % Q
    return P

A = 200
B = 20
A = Changer(A, B)
print(A, B, sep = '$')
B = Changer(B)
print(A, B, sep = '$', end = '###')

What will be the output of the following code ?

import pickle                             
ID = {1:"Ziva", 2:"53050", 3:"IT", 4:"38", 5:"Dunzo"}                                    
fin = open("Emp.pkl","wb")
pickle.dump(ID, fin)                     
fin.close()                      
fout = open("Emp.pkl",'rb')
ID = pickle.load(fout)
print(ID[5])

What will be the output of the following code ?

import pickle
List1 = ['Roza', {'a': 23, 'b': True}, (1, 2, 3), [['dogs', 'cats'], None]] 
List2 = ['Rita', {'x': 45, 'y': False}, (9, 5, 3), [['insects', 'bees'], None]] 
with open('data.pkl', 'wb') as f:    
    f.write(List1)
with open('data.pkl', 'wb') as f:
    f.write(List2)            
with open('data.pkl', 'rb') as f:     
    List1 = pickle.load(f)
print(List1)

What is the output of the following considering the file data.csv given below.

    File data.csv contains:
Identifier;First name;Last name
901242;Riya;Verma
207074;Laura;Grey
408129;Ali;Baig
934600;Manit;Kaur
507916;Jiva;Jain

import csv
with open('C:\data.csv', 'r+') as f: 
  data = csv.reader(f)
  for row in data: 
      if 'the' in row :
          print(row)

What is the output of the following code fragment? Explain.

fout = open("output.txt", 'w') 
fout.write("Hello, world! \n") 
fout.write("How are you?") 
fout.close()
f = open("output.txt")
print(f.read())

Write the output of the following code with justification if the contents of the file "ABC.txt" are:

"Welcome to Python Programming!"

f1 = open("ABC.txt", "r")
size = len(f1.read())
print(size)
data = f1.read(5)
print(data)

Give the output of the following snippet:

import pickle
list1, list2 = [2, 3, 4, 5, 6, 7, 8, 9, 10], []
for i in list1:
    if (i % 2 == 0 and i % 4 == 0):
        list2.append(i)
f = open("bin.dat", "wb")
pickle.dump(list2, f)
f.close()
f = open("bin.dat", "rb")
data = pickle.load(f)
f.close()
for i in data: 
    print(i)

Predict the output of following code if the input is :

(i) 12, 3, 4, 5, 7, 12, 8, 23, 12

(ii) 8, 9, 2, 3, 7, 8

Code :

s = eval(input("Enter a list : "))
n = len(s)
t = s[1:n-1]
print(s[0] == s[n-1] and
t.count(s[0]) == 0)

Predict the output :

def h_t(NLst):                
    from_back = NLst.pop()            
    from_front = NLst.pop(0)
    NLst.append(from_front)
    NLst.insert(0, from_back)
NLst1 = [[21, 12], 31]
NLst3 = NLst1.copy()
NLst2 = NLst1
NLst2[-1] = 5
NLst2.insert(1, 6)
h_t(NLst1)
print(NLst1[0], NLst1[-1], len(NLst1)) 
print(NLst2[0], NLst2[-1], len(NLst2)) 
print(NLst3[0], NLst3[-1], len(NLst3))