Musings about Python syntax
Fredrik Lundh
fredrik at pythonware.com
Tue Oct 19 13:03:00 EDT 1999
steve_allison at my-deja.com wrote:
> i) if Python is as object orientated as is claimed, why are things like
> len() not member functions of list/tuples ?
hey, what makes you think len(obj) is less object-
oriented than obj.len() ? it's just syntax, you know.
and except from a few builtin types, len actually
*is* a method, spelled __len__. the len() function
is just there for your convenience...
also see:
http://www.python.org/doc/FAQ.html#6.5
> ii) similarly, why is 'del' operator like, and not a member function of
> those types that support it ? having an 'append' method, but a 'del'
> operator seems peculiar.
"del" doesn't destroy an object, it removes
the name from the local namespace.
also see:
http://www.python.org/doc/FAQ.html#4.17
http://www.python.org/doc/FAQ.html#6.14
</F>
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