Undefined variable “py” or class “py.model.Message”.

July 5, 2018
July 5, 2018

With the addition of python routines in Imatest 5.0, several components require a working python installation. When some installation problems occur, the user may encounter the error message:

Undefined variable “py” or class “py.model.Message”.

This is generally caused by Imatest being unable to locate the correct python interpreter, or python failing to install properly.

Solution 1:

Make sure the python interpreter was installed properly and that you have permissions to access it. It should install to:
 
C:\Program Files\Imatest\v5.0\Master\bin\python35
 

Solution 2:

Some customers get this error when they try to run python:
 
image.png
 
To resolve, Reinstall the Visual Studio C++ 2013 redistributable, this is in the Imatest installer or you can install it directly from Microsoft: VS 2013

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