Python argument argument

Question

What is the best way to make a function that has a pointer as an argument work with boost python? I see that there are many possibilities for return values ​​in documents, but I don’t know how to do this with arguments.

void Tesuto::testp(std::string* s)
{
    if (!s)
        cout << " NULL s" << endl;
    else
        cout << s << endl;
}

>>> t.testp(None)
 NULL s
>>>       
>>> s='test'
>>> t.testp(s)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
Boost.Python.ArgumentError: Python argument types in
    Tesuto.testp(Tesuto, str)
did not match C++ signature:
    testp(Tesuto {lvalue}, std::string*)
>>>                        

Answer 1

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: ​​:

 
std::string * pointer (std::string& p)
{
    return &p;
}

:

>>> s = 'hello'
>>> t.testp (pointer (s))
hello
>>>