[C++-sig] len function?

[Ron Brown, Jr.]

Alex Mohr wrote:
> In 1.33.1, you can do:
> #include <boost/python/detail/api_placeholder.hpp>
> boost::python::len(x);

Thanks, Alex, this is what I ended up doing.  Why is the len() function 
in the api_placeholder header?  Shouldn't that be a standard 
boost.python function?

- Ron