Buildings.Utilities.IO.Python27.Functions.BaseClasses

Package with functions that call Python

Information

This package contains functions that call Python.

Extends from Modelica.Icons.BasesPackage (Icon for packages containing base classes).

Package Content

Name Description
Buildings.Utilities.IO.Python27.Functions.BaseClasses.PythonObject PythonObject class used to create the external object: PythonObject
Buildings.Utilities.IO.Python27.Functions.BaseClasses.exchange exchange Function that communicates with Python

Buildings.Utilities.IO.Python27.Functions.BaseClasses.PythonObject

class used to create the external object: PythonObject

Information

Class derived from ExternalObject having two local external functions named destructor and constructor.

These functions create and release an external object that allows the storage of a Python object.

Extends from ExternalObject.

Modelica definition

class PythonObject "class used to create the external object: PythonObject" extends ExternalObject; function constructor "Construct an external object that can be used to store a Python object" output PythonObject pytObj; external "C" pytObj = initPythonMemory(); end constructor; function destructor "Release memory" input PythonObject pytObj; external "C" freePythonMemory(pytObj); end destructor; end PythonObject;

Buildings.Utilities.IO.Python27.Functions.BaseClasses.exchange

Function that communicates with Python

Information

This function exchanges data with Python. See Buildings.Utilities.IO.Python27.UsersGuide for instructions, and Buildings.Utilities.IO.Python27.Functions.Examples for examples.

Inputs

TypeNameDefaultDescription
StringmoduleName Name of the python module that contains the function
StringfunctionNamemoduleNameName of the python function
PythonObjectpytObj Memory that holds the Python object
BooleanpassPythonObject Set to true if the Python function returns and receives an object, see User's Guide
StringpythonPath Value of PYTHONPATH environment variable
RealdblWri[max(1, nDblWri)] Double values to write
IntegerintWri[max(1, nIntWri)] Integer values to write
StringstrWri[max(1, nStrWri)] String values to write
IntegernDblWrinDblWri( ...Number of double values to write
IntegernDblReanDblRea( ...Number of double values to read
IntegernIntWrinIntWri( ...Number of integer values to write
IntegernIntReanIntRea( ...Number of integer values to read
IntegernStrWrinStrWri( ...Number of strings to write

Outputs

TypeNameDescription
RealdblRea[max(1, nDblRea)]Double values returned by Python
IntegerintRea[max(1, nIntRea)]Integer values returned by Python

Modelica definition

function exchange "Function that communicates with Python" input String moduleName "Name of the python module that contains the function"; input String functionName=moduleName "Name of the python function"; input BaseClasses.PythonObject pytObj "Memory that holds the Python object"; input Boolean passPythonObject "Set to true if the Python function returns and receives an object, see User's Guide"; input String pythonPath "Value of PYTHONPATH environment variable"; input Real dblWri[max(1, nDblWri)] "Double values to write"; input Integer intWri[max(1, nIntWri)] "Integer values to write"; input String strWri[max(1, nStrWri)] "String values to write"; input Integer nDblWri(min=0) "Number of double values to write"; input Integer nDblRea(min=0) "Number of double values to read"; input Integer nIntWri(min=0) "Number of integer values to write"; input Integer nIntRea(min=0) "Number of integer values to read"; input Integer nStrWri(min=0) "Number of strings to write"; // input Integer nStrRea(min=0) "Number of strings to read"; // input Integer strLenRea(min=0) // "Maximum length of each string that is read. If exceeded, the simulation stops with an error"; output Real dblRea[max(1, nDblRea)] "Double values returned by Python"; output Integer intRea[max(1, nIntRea)] "Integer values returned by Python"; external "C" pythonExchangeValues(moduleName, functionName, pythonPath, dblWri, nDblWri, dblRea, nDblRea, intWri, nIntWri, intRea, nIntRea, strWri, nStrWri, pytObj, passPythonObject); end exchange;