Method read_byte

crates/stdlib/src/mmap.rs:1138–1149

(&self, vm: &VirtualMachine)

        #[pymethod]
        fn read_byte(&self, vm: &VirtualMachine) -> PyResult<PyIntRef> {
            let pos = self.pos();
            if pos >= self.__len__() {
                return Err(vm.new_value_error("read byte out of range"));
            }

            let b = self.check_valid(vm)?.deref().as_ref().unwrap().as_slice()[pos];

            self.advance_pos(1);

            Ok(PyInt::from(b).into_ref(&vm.ctx))
        }

        #[pymethod]
        fn readline(&self, vm: &VirtualMachine) -> PyResult<PyBytesRef> {