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Interface to Python%uf09f %uf09f RCP Consult 2017-2025 Page 33. Register Python specific dynamic library python???.dll in STRUREL environmentFor final binding of STRUREL and Python you have to register python???.dll in each STRURELmodule (e.g. Comrel). Press key F2 in the STRUREL module to open the Preferences Dialog Box. Go to position Standard Add-onsand check whether this dll is registered. Here we show it for Python 3.11 with python311.dll. If Python installation, system runtime environment and binding to STRUREL are ready you can start to use the Python Interface.4. Interaction between STRUREL and PythonThe major kind of communication with the Python Interface is by using script files with extension %u2019.py%u2019. Two types of scripts are implemented.The first type of script describes a real function with a single argument as a vector containing the values of all stochastic variables and fixed values of all deterministic parameters, as ordered in the Stochastic Model of STRUREL. If the function is run from the GUI for testing and debugging the stochastic variables are set to the mean values. The return value of this function is a partial or complete evaluation of the State Function in Symbolic Expression of STRUREL job.The second type of script may contain any set of commands in Python language. Such a script must have a statement defining variable %u2019res%u2019 as a final return value. Usually, this statement is the last one. We recommend using the first type of script, because a description of function will be loaded and parsed by the engine once. Then, on runtime, it will be just evaluated numerically. The second kind of script requires loading and parsing of its content by the engine runtime for each call of evaluation. This slows down computation.