[C++-sig] boost.python fails to recognize type

[Gennadiy Rozental]

Mateusz Berezecki <mateuszb <at> gmail.com> writes:

>   TableScanner create_scanner(object pyspec)
>   {
>     Hypertable::ScanSpec& spec = extract<Hypertable::ScanSpec&>(pyspec);
>     return TableScanner(m_table_ptr->create_scanner(spec, 10));
>   }
> };
> 
> The error is as follows
> TypeError: No registered converter was able to extract a C++ reference
> to type Hypertable::ScanSpec from this Python object of type
> Boost.Python.class

Obviuosly you are getting object representing class instead of one representing
instance of a class. you did not show how create_scanner is exported/invoked.
Maybe you exported it as static method?

Gennadiy