Doubt on float data type

Question

If we use float data type and then if write 1+2+3 then is the output is 6.0?????

Answer 1

Technically in Python you do not declare the variable type when declaring a variable;

a = 1+2+3
print(a)
>>>6
print(isinstance(a, int))
print(isinstance(a, float))
>>>True
>>>False

... Unless you convert a to float beforehand;

a = 1+2+3
print(a)
>>>6
a = float(a)
print(a)
>>>6.0
print(isinstance(a, int))
print(isinstance(a, float))
>>>False
>>>True