How many nodes per python script are allowed?

Hi there,
I have two questions for you:

  1. I’ve been following some ROS2 python courses and I noticed that every node was initialized in its own Python script. Is it actually possible to initialize multiple nodes in 1 python script?

  2. During research I’ve noticed that ROS-users write about “multiple nodes per process”. What do we mean with “process” exactly in this context?

Thank you in advance, Richard

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