Support for third-party apps in Siri is still quite limited in iOS 10, and wouldn't work for things like running scripts in response to voice commands. There are a couple of (7, I think) pre-defined extension points available for things like ordering a car (Uber...), booking a table, sending a text message (WhatsAppβ¦) and so on, but none that would fit for Pythonista, so this won't happen anytime soon, I'm afraid.
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This is the community forum for my apps Pythonista and Editorial.
For individual support questions, you can also send an email. If you have a very short question or just want to say hello β I'm @olemoritz on Twitter.