diff --git a/vm/src/stdlib/dis.rs b/vm/src/stdlib/dis.rs
index 2f591f855..4436d1093 100644
--- a/vm/src/stdlib/dis.rs
+++ b/vm/src/stdlib/dis.rs
@@ -1,57 +1,56 @@
-use crate::bytecode::CodeFlags;
-use crate::obj::objcode::PyCodeRef;
-use crate::obj::objstr::PyStringRef;
-use crate::pyobject::{BorrowValue, ItemProtocol, PyObjectRef, PyResult, TryFromObject};
-use crate::vm::VirtualMachine;
-use rustpython_compiler::compile;
+pub(crate) use decl::make_module;
 
-fn dis_dis(obj: PyObjectRef, vm: &VirtualMachine) -> PyResult {
-    // Method or function:
-    if let Ok(co) = vm.get_attribute(obj.clone(), "__code__") {
-        return dis_disassemble(co, vm);
+#[pymodule(name = "dis")]
+mod decl {
+    use crate::bytecode::CodeFlags;
+    use crate::obj::objcode::PyCodeRef;
+    use crate::obj::objdict::PyDictRef;
+    use crate::obj::objstr::PyStringRef;
+    use crate::pyobject::{BorrowValue, ItemProtocol, PyObjectRef, PyResult, TryFromObject};
+    use crate::vm::VirtualMachine;
+    use rustpython_compiler::compile;
+
+    #[pyfunction]
+    fn dis(obj: PyObjectRef, vm: &VirtualMachine) -> PyResult {
+        // Method or function:
+        if let Ok(co) = vm.get_attribute(obj.clone(), "__code__") {
+            return disassemble(co, vm);
+        }
+
+        // String:
+        if let Ok(co_str) = PyStringRef::try_from_object(vm, obj.clone()) {
+            let code = vm
+                .compile(
+                    co_str.borrow_value(),
+                    compile::Mode::Exec,
+                    "<string>".to_owned(),
+                )
+                .map_err(|err| vm.new_syntax_error(&err))?
+                .into_object();
+            return disassemble(code, vm);
+        }
+
+        disassemble(obj, vm)
     }
 
-    // String:
-    if let Ok(co_str) = PyStringRef::try_from_object(vm, obj.clone()) {
-        let code = vm
-            .compile(
-                co_str.borrow_value(),
-                compile::Mode::Exec,
-                "<string>".to_owned(),
+    #[pyfunction]
+    fn disassemble(co: PyObjectRef, vm: &VirtualMachine) -> PyResult {
+        let code = &PyCodeRef::try_from_object(vm, co)?.code;
+        print!("{}", code);
+        Ok(vm.get_none())
+    }
+
+    #[pyattr(name = "COMPILER_FLAG_NAMES")]
+    fn compiler_flag_names(vm: &VirtualMachine) -> PyDictRef {
+        let dict = vm.ctx.new_dict();
+        for (name, flag) in CodeFlags::NAME_MAPPING {
+            dict.set_item(
+                vm.ctx.new_int(flag.bits()),
+                vm.ctx.new_str((*name).to_owned()),
+                vm,
             )
-            .map_err(|err| vm.new_syntax_error(&err))?
-            .into_object();
-        return dis_disassemble(code, vm);
+            .unwrap();
+        }
+        dict
     }
-
-    dis_disassemble(obj, vm)
-}
-
-fn dis_disassemble(co: PyObjectRef, vm: &VirtualMachine) -> PyResult {
-    let code = &PyCodeRef::try_from_object(vm, co)?.code;
-    print!("{}", code);
-    Ok(vm.get_none())
-}
-
-fn dis_compiler_flag_names(vm: &VirtualMachine) -> PyObjectRef {
-    let dict = vm.ctx.new_dict();
-    for (name, flag) in CodeFlags::NAME_MAPPING {
-        dict.set_item(
-            vm.ctx.new_int(flag.bits()),
-            vm.ctx.new_str((*name).to_owned()),
-            vm,
-        )
-        .unwrap();
-    }
-    dict.into_object()
-}
-
-pub fn make_module(vm: &VirtualMachine) -> PyObjectRef {
-    let ctx = &vm.ctx;
-
-    py_module!(vm, "dis", {
-        "dis" => ctx.new_function(dis_dis),
-        "disassemble" => ctx.new_function(dis_disassemble),
-        "COMPILER_FLAG_NAMES" => dis_compiler_flag_names(vm),
-    })
 }