Using Python as the script language

A distinguishing feature of Python is its clear and understandable syntax. With this you can conveniently set up a prompt which is tailored to your project.

Python and all of the additional libraries are open source programs without usage restrictions.

• Ensure that the desired default Python environment is selected (Defining default Python environment for script files).

Notes:   You must install Python 2.7 or a higher version and the appropriate extension PythonWin, which provides Python with the COM functionality. Python 2.7 and the appropriate extension PythonWin must correspond to your Vissim version, e.g. python-2.7.6.amd64.msi and pywin32-218.win-amd64-py2.7.exe for the 64-bit edition of Vissim. wxPython is not supported.

Example of a *.pys script file

all_flows = Vissim.Net.VehicleInputs.GetAll()

for i in range(len(all_flows)):

all_flows[i].SetAttValue("Volume(1)", 0.5 * all_flows[i].AttValue("Volume(1)"))