variable value

Question

how to change the value stored in the same variable

Answer 1

Before we can help you, it's up to you to make a try by yourself. Please post the link to this code here. Thanks!

Answer 2

May be you was asking for this?

a = 7
b = 2
a = a - b

print(a) # result is 5

Answer 3

You cannot. Every primitive type in Python has a class associated to it so a variable is nothing but an object. Also all primitive types are immutable in Python. You have some mutable types like lists, dictionary and sets.

Every time you try to assign a new value to the same variable, you end up creating a new object.

Example

a = 2
b = a
print(id(a))
print(id(b))
a = 7
print(id(a))