Implement pygen-suggestion from @MilanKlausz(#2554)

[willend]

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Please describe what your PR is adding in terms of features or bugfixes:

As explained in #2554 @MilanKlausz has suggested to add an optional input-path for components def make(input_path=None): to the pygen-variant of the code-generator.

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Development OS / boundary conditions

Please describe what OS you developed and tested your additions on, and if any special dependencies are required:

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