Question

In Python, if I have the following code:

r = Numeric(str)
i = int(r)
if r == i :
    return i
return r

Is this equivalent to:

r = Numeric(str)
return r

Or do the == values of different types r and i give different return values r and i?

Answer 1

It all depends if the class implements an adequate __eq__ method to override == operator.

Edit: Added a little example:

>>> class foo:
...     def __init__(self,x):
...         self.x = x
...     def __eq__(self,y):
...         return int(self.x)==int(y)
... 
>>> f = foo(5)
>>> f == '5'
True
>>> 5 == '5'
False