DATA WORLD_WITH NITIN Day - 2

Python Day :- 02

Variables in Python

Declaring a variable in python is as easy as
writing code in simple english language. You
can use an assignment operator to directly
assign a value to any variable, although there
are certain rules that must be followed in
order to declare variables in Python.

variable_name = value

For example :-

a = 10.

a = variable_name
10 = value.

We can Declare multiple variables in a single line of code in python as well.

a,b,c = 1,2,3

print(a,b,c)

1 2 3

Naming conventions in Python

1. Variables in Python are case sensitive.
2. A variable name cannot start with a number.
3. A variable name can consist of alphanumeric characters.
4. A variable name can start with a character or an underscore.

Global Variables in Python :-

Global variables are those that can be used outside the scope of a class, function, etc. To create a global variable inside a function, you can use the global keyword as well.

def abc():
global X
X=10

abc()
print(X)