Python Variables

A variable in python is a container that store data values. Python is a type-infer language i.e. it detects the data type of a variable automatically in other words you don't need to specify the data type of variable.

Note: Python supports unlimited variable length, we keep the maximum length to 79 characters.

name = 'python' # String Data Type
sum = None # a variable without a value
x = 23 # integer
y = 6.2 # Float
sum = x+y
print(sum)

a = b = c = 1 #single value to multiple variables
a,b = 1, 2 #multiple value to multiple variable
a,b = b,a #value of a and b is swapped

1. Local Variable

   def func():
      x=8
   print(x)
    
   func()
   print(x) #error will be shown

2. Global Variable

   x = 8
   def fun():
      print(x) #Calling variable 'x' inside func()
    
   func()
   print(x) #Calling variable 'x' outside func()