How to check if idapythonrc.py is running in IDA Pro or idalib?

IDA General API & SDK
1

I’ve found that idapythonrc.py is loaded both by IDA Pro (the user interface) and idalib. However, there’s some configuration that I only want applied when running within IDA Pro (the user interface), such as pre-configuring logging, formatting, etc.

What is the supported way to recognize when idapythonrc.py is being loaded by IDA Pro (the user interface) versus idalib?

I’ve found IDAPYTHON_OWNING_INTERPRETER which seems to be set to True in IDA Pro and False in idalib (and not present outside of the IDA ecosystem). However, its not documented. Can I rely on it being present?

You can see how I would use it here: https://github.com/williballenthin/dotfiles/blob/8f0d6f6fddddd2ec91bfa24e0c5767d17fc6e26c/.idapro/idapythonrc.py#L1-L5

if globals().get("IDAPYTHON_OWNING_INTERPRETER"):
    # when running within IDA Pro...
    # 
    # this is a magic symbol that seems to be set when
    # IDAPython is hosted within IDA Pro (and not idalib).

    import logging
    logging.basicConfig(level=logging.INFO)
2

for now you can use os.environ.get("IDA_IS_INTERACTIVE")=="1".

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