Parameter values shared across Python class instances

[Mat198]

I’m trying to create tests to verify the interaction of my software with the generate_parameter_library. I want to save the parameters to a file when they are updated in both Python and C++. The testes for the C++ version worked correctly, but in Python, I noticed an odd behaviour. The parameter values are shared across multiple instances. This resulted in the tests failing due to an inconsistent initial value. I expected a reset to parameter values when a new instance is created.

Looking at the generated code, I noticed the Param class doesn’t have an __init__(self) function and declares the parameters directly in the class body. This causes the parameters to be shared between instances. Is this the desired behaviour?

Adding the __init__(self) function and selfto the variables solved this. As a quick fix, I reloaded the entire module between each test.

If this is not intended, I can provide a pull request to solve this issue.

Auto generated code:

Expected generated code: