(i) In a list, elements are defined within square brackets, whereas in tuples, they may be enclosed by parenthesis.
(ii) The elements of a tuple can be even defined without parenthesis.
(iii) Whether the elements defined within parenthesis or without parenthesis, there is no differente in it's function.

country=["India", "Russia", "Srilanka", "China", "Brazil"]
is_member = input("Enter the name of the country: ")
if is_member in country:
print(is_member, " is the member of BRICS")
else:
print(is_member, " is not a member of BRICS")
Output:
Enter the name of the country: India
India is the member of BRICS
Output:
Enter the name of the country: Japan
Japan is not a member of BRICS

Output:
(i) 2
(ii) 1
(iii) [12, 12, 36]

(i) List comprehension is a simplest way of creating sequence of elements that satisfy a certain condition.
(ii) Syntax:
List = [ expression for variable in range ]
(iii) Example: Generating squares of first 10 natural numbers using the concept of List comprehension.
> > > squares = [x ** 2 for x in range(1, 11) ]
> > > print (squares)
Output:
[1, 4, 9, 16, 25, 36, 49, 64, 81, 100]

Output:
(i) 12, 89, 79, 80
(ii) 12, 79, 80
(iii) []

Syntax:
(i) remove (): List.remove(element) # to delete a particular element
(ii) pop(): List.pop(index of an element)
(iii) clear (): List. clear ()

Output:
(i) ['T', 'N', 'M']
(ii) ['T'
(iii) Error

Output:
(i) 34, 45, 48, 80
(ii) 34, 45, 48, 80, 90
(iii) [34, 98, 47, 90, 55]

MyList = [2, 4, 5, 8, 10]
print ("MyList elements before update ... ")
for x in MyList:
print (x)
MyList[2] = 6
print ("MyList elements after updation ... ")
for y in MyList:
print (y)
Output:
MyList elements before update ...
2
4
5
8
10
MyList elements after updation ...
2
4
6
8
10

In Python, the lists are mutable, which means they can be changed. A list element or range of elements can be changed or altered by using simple assignment operator (=).
Example:
MyList = [1,3,5,7,9]
print ("List Odd numbers ... ")
for x in MyList:
print (x)
MyList[0:5] = 2, 4, 6, 8, 10
print ("List Even numbers ... ")
for y in MyList:
print (y)

(i) i < len (list)
(ii) print
(iii) end = '\t'

(i) The len( ) function in Python is used to find the length of a list. (i.e., the number of elements in a list).
(ii) Usually, the len( ) function is used to set the upper limit in a loop to read all the elements of a list.
(iii) If a list contains another list as an element, len( ) returns that inner list as a single element.
(iv) Example: Accessing single element
> > > MySubject = ['Tamil', 'English', 'Comp', 'Science', 'Maths']
> > > len(MySubject)
4

A list or Tuple can be converted as set by using set( ) function. This is very simple procedure. First you have to create a list or Tuple then, substitute its variable within set( ) function as argument.
Example:
MyList= [2, 4, 6, 8, 10]
MySet=set(MyList)
print(MySet)
Output:
{2, 4, 6, 8, 10}

a = int(input("Enter value of A:"))
b = int(input('Enter value of B:"))
print("Value of A = ",a, "\n Value of B = ",b)
(a, b) = (b, a)
print("Value of A = ",a, "\n Value of B = ",b)
Output:
Enter value of A: 54
Enter value of B: 38
value of A = 54
value of B = 38
value of A = 38
value of B = 54

divBy4=[ ]
for i in range(21):
if (i%4==0):
divBy4.append(i)
print( divBy4)
Output:
[0,4,8,12,16,20]