Reddit: why aren't people using D?

[Rainer Deyke]

Leandro Lucarella wrote:
> !? It's true that in Python all are references, but there are inmutable
> objects in Python, like int, float, strings and tuples. From a practical
> POV it exactly the same as value types, if you do:

Immutable reference types are still reference types, and follow the same
rules as other reference types.  You just can't modify them.  The
assignment operator *always* rebinds a reference, regardless of the
mutability or immutability of any objects involved.

The one exception is that operators like '+=' will create a new object
when applied to immutable types, but modify existing objects when
applied to mutable objects.  And, yes, this bothers me in Python.  A lot.

But that's still not half as bad as D, where something simple like 'a =
b; a.x = 5;' can have two completely different meanings depending on
whether 'a' is a reference type or a value type.


-- 
Rainer Deyke - rainerd at eldwood.com