How many namespaces are here in python?

Which parameter not used in open() function in file handling ?

What is the result of the following expression?

print(3 * (1 + 2) / 4 % 2)

Let a = 10 and b value is unknown. c = a^b

c = 8

Which of the following is the value of b?

(A+B)/(C-D)

you will categorize this expression as

What will be the output returned by the following code ?

num = [10, 20, 30, 40, 50, 60]

result = all([i > 15 for i in num])

print(result)

What will be the output returned by the following code ?

import numpy as np

array = np.array([1, 2, 3, 4, 5])

result = np.mean(array)

print(result)

What is the result of the following expression?
x = True
y = False
z = False
if x or y and z:
    print("True")
else:
    print("False")

what is the output of the following?

l = [ '*' for i in range(5)]
for i in range(5,1,-1):
	l.remove('*')
print(*l, sep=" * ")

What is the output of the following code?

def extendList(val, list=[]): 
    list.append(val) 
    return list 
list1 = extendList(10) 
list2 = extendList(123,[]) 
list3 = extendList('a') 
print("list1 = %s" % list1)