Trying to send parameters from a simple Python function to C++

I'm trying to link a Python script with a C++ script. I found this and works.

foo.cpp

#include <iostream> class Foo{ public: void bar(){ std::cout << "Test!" << std::endl; } }; extern "C" { Foo* Foo_new(){ return new Foo(); } void Foo_bar(Foo* foo){ foo->bar(); } } 

fooWrapper.py

from ctypes import cdll lib = cdll.LoadLibrary('./libfoo.so') class Foo(object): def __init__(self): self.obj = lib.Foo_new() def bar(self): lib.Foo_bar(self.obj) f = Foo() f.bar() 

To compile I use:

g++ -c -fPIC foo.cpp -o foo.o g++ -shared -Wl,-soname,libfoo.so -o libfoo.so foo.o 

If -soname doesn't work, use -install_name:

g++ -c -fPIC foo.cpp -o foo.o g++ -shared -Wl,-install_name,libfoo.so -o libfoo.so foo.o 

And to execute just:
python fooWrapper.py

This works, it prints me that 'Test!' of the bar() function.
The thing is that now I want to send some parameters from the Python function to the C++ function but what I've tried doesnt work.

This is my try:

foo.cpp

#include <iostream> class Foo{ public: void bar(int number){ printf("Number is: %d", number); std::cout << "Test!" << std::endl; } }; extern "C" { Foo* Foo_new(){ return new Foo(); } void Foo_bar(Foo* foo){ foo->bar(int number); } } 

fooWrapper.py

from ctypes import cdll lib = cdll.LoadLibrary('./libfoo.so') class Foo(object): def __init__(self): self.obj = lib.Foo_new() def bar(self): lib.Foo_bar(self.obj) num = 5 f = Foo() f.bar(num) 

I get this error. Trying to compile the C++ function:

foo.cpp: In function ‘void Foo_bar(Foo*)’: foo.cpp:13: error: expected primary-expression before ‘int’ 

What I'm doing wrong? Thanks in advance.