Python Forum

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?

In the first case you work in the interactive mode, i.e.

>>>a = 2
>>>type(a)
<type 'int'>

when in py file it still works, but you don't 'see' the result. you need to print it in some form or use it in any way, e.g.

a = 2
b = "some string"
print(type(a))
what_type = type(b)
print(what_type)

from module:

a = 2
b = 3.0
c = 'string'
print(type(a))
print(type(b))
print(type(c))

save in foo.py then run foo

Output:
M:\
λ python foo.py
<class 'int'>
<class 'float'>
<class 'str'>

Do you think something as simple as this wouldn't have been discovered by version 3.6.5?