%typemapping of a C++ Library for Python Interface -

i want create python wrapper c++ library. cool, if there automatic conversion of std::vector python lists , other way round. unfortunatly if add code interface-file still errors in run-time.

%typemap(in) std::vector<float> value (std::vector<float> vin) {     int ilen = pysequence_length($input);      for(unsigned int = 0; < ilen; i++) {         pyobject *o = pysequence_getitem($input, i);         if (pynumber_check(o)) {             vin.push_back((float)pyfloat_asdouble(o) );         }     }     $1 = vin; } %typemap(out) std::vector<float> {     std::vector<float> vout = $1;     int ilen = vout.size();     $result = pylist_new(ilen);     for(unsigned int = 0; < ilen; i++) {         double fval = vout.at(i);         pyobject *o = pyfloat_fromdouble((double) fval);         pylist_setitem($result, i, o);     } } 

class header:

class trainingset {     private:         std::vector<std::vector<float> > m_vinputlist;         std::vector<std::vector<float> > m_voutputlist;     public:         void addinput(const std::vector<float> &vin);     // .. 

python code:

trainset = trainingset() trainset.addinput([0.5, 0.5, 0.5]) 

error:

file "runsomnet.py", line 9, in <module> trainset.addinput([0.5, 0.5, 0.5]) file "/home/dgrat/annetgpgpu/build/annet/anpynetcpu.py", line 674, in addinput def addinput(self, *args): return _anpynetcpu.trainingset_addinput(self, *args) notimplementederror: wrong number or type of arguments overloaded function      'trainingset_addinput'. possible c/c++ prototypes are: ann::trainingset::addinput(std::vector< float,std::allocator< float > > const &) ann::trainingset::addinput(float *,unsigned int const &) 

if you're going define %typemaps manually, need %typemap(check), like:

%typemap(typecheck) std::vector<float>& {     $1 = pysequence_check($input) ? 1 : 0; } 

i believe rule of thumb if define %typemap(in), should define %typemap(check) --- otherwise, generated code never gets it's put %typemap(in).