Function dup

crates/vm/src/stdlib/posix.rs:2034–2039

(fd: BorrowedFd<'_>, vm: &VirtualMachine)

    #[pyfunction]
    fn dup(fd: BorrowedFd<'_>, vm: &VirtualMachine) -> PyResult<OwnedFd> {
        let fd = nix::unistd::dup(fd).map_err(|e| e.into_pyexception(vm))?;
        super::set_inheritable(fd.as_fd(), false)
            .map(|()| fd)
            .map_err(|e| e.into_pyexception(vm))
    }

    #[derive(FromArgs)]
    struct Dup2Args<'fd> {