*********************** Conversions *********************** Python to Octave Types ---------------------- Shows the round-trip data types, originating in Python. Lists and sets will be converted to a numeric array if possible, falling back on cells. If an Octave cell consisting of numbers is desired, use a tuple. Cell, Struct, StructArray are Oct2Py convenience classes. ============= =============== =============== Python Octave Python ============= =============== =============== int int32 np.int32 long int64 np.int64 float double np.float64 complex double np.complex128 str char unicode unicode cell unicode bool logical np.bool None nan np.nan dict struct Struct tuple cell Cell list array or cell ndarray or Cell set array or cell ndarray or Cell Struct struct Struct StructArray struct array StructArray ============= =============== =============== Numpy to Octave Types --------------------- Note that when `convert_to_float` is set (default is True), integer types are converted to floating point before sending them to Octave. ============= ============ ============= Numpy Octave Numpy ============= ============ ============= np.int8 int8 np.int8 np.int16 int16 np.int16 np.int32 int32 np.int32 np.int64 int64 np.int64 np.uint8 uint8 np.uint8 np.uint16 uint16 np.uint16 np.uint32 uint32 np.uint32 np.uint64 uint64 np.uint64 np.float16 double np.float64 np.float32 single np.float32 np.float64 double np.float64 np.float128 double np.float64 np.double double np.float64 np.complex64 double np.complex64 np.complex128 double np.complex128 np.complex256 double np.complex128 np.bool logical bool np.str cell list np.object cell list sparse sparse sparse recarray struct array StructArray ============= ============ ============= Octave to Python Types ---------------------- These are handled unambiguously. The only known data type that is not transferable is a function pointer, since Octave cannot save them to the v6 MAT file format. =================== ====================== Octave Python =================== ====================== array ndarray cell Cell struct Struct struct array StructArray logical ndarray (of uint8) sparse sparse user defined object Oct2Py object pointer =================== ======================