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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Is it possible to make VirtualMachine Sync?","articleBody":"I am trying to integrate RustPython into a game using Bevy and although I am able to find [a solution using exclusive systems](https://gist.github.com/allsey87/5b0db1a218604394c5deaf2b31ddbe1e) it is not very flexible and prevents other unrelated systems from running in parallel.\r\n\r\nThe core issue is that `Sync` is not currently implemented for `VirtualMachine`, or more precisely for the `RefCell` wrapping `std::vec::Vec\u003cPyRef\u003crustpython_vm::frame::Frame\u003e\u003e`.\r\n\r\nIs it possible to use a `Mutex` internally instead of a `RefCell`? Or if this is not desirable, perhaps just when RustPython's threading feature is enabled?","author":{"url":"https://github.com/allsey87","@type":"Person","name":"allsey87"},"datePublished":"2021-06-22T14:36:01.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/2718/RustPython/issues/2718"}