type command does not work appropriately

[atharva]

when I assign a variable as given below type command works
for example :-

a = 2
type(a)

but when I assign a variable as given below and save it as .py file and run it does not what it should.

a = 2
b = 3.0
c = "string"
type(a)
type(b)
type(c)

please help me understand what is the reason behind this?