diff --git a/include/pocketpy/collections.h b/include/pocketpy/collections.h
new file mode 100644
index 00000000..255fe903
--- /dev/null
+++ b/include/pocketpy/collections.h
@@ -0,0 +1,24 @@
+#pragma once
+
+#include "obj.h"
+#include "common.h"
+#include "memory.h"
+#include "str.h"
+#include "cffi.h"
+
+namespace pkpy
+{
+    struct PyDeque
+    {
+        PY_CLASS(PyDeque, collections, deque);
+
+        // some fields can be defined here
+        int len;
+
+        PyDeque() = default;
+        void printHelloWorld();
+        static void _register(VM *vm, PyObject *mod, PyObject *type);
+    };
+
+    void add_module_mycollections(VM *vm);
+} // namespace pkpy
\ No newline at end of file
diff --git a/include/pocketpy/pocketpy.h b/include/pocketpy/pocketpy.h
index a16e6454..26acf9a1 100644
--- a/include/pocketpy/pocketpy.h
+++ b/include/pocketpy/pocketpy.h
@@ -7,6 +7,7 @@
 #include "base64.h"
 #include "cffi.h"
 #include "linalg.h"
+#include "collections.h"
 #include "easing.h"
 #include "io.h"
 #include "vm.h"
@@ -14,6 +15,7 @@
 #include "random.h"
 #include "bindings.h"
 
+
 namespace pkpy {
 
 void init_builtins(VM* _vm);
diff --git a/src/collections.cpp b/src/collections.cpp
new file mode 100644
index 00000000..7fa02824
--- /dev/null
+++ b/src/collections.cpp
@@ -0,0 +1,33 @@
+#include "pocketpy/collections.h"
+
+namespace pkpy
+{
+	void PyDeque::_register(VM *vm, PyObject *mod, PyObject *type)
+	{
+		vm->bind_default_constructor<PyDeque>(type);
+
+		vm->bind(type, "__len__(self) -> int",
+				 [](VM *vm, ArgsView args){
+					PyDeque& self = _CAST(PyDeque&, args[0]);
+					return VAR(self.len); 
+			});
+
+		vm->bind(type, "printHelloWorld(self) -> None",
+				 [](VM *vm, ArgsView args){
+					PyDeque& self = _CAST(PyDeque&, args[0]);
+					self.printHelloWorld();
+					return vm->None;
+			});
+	}
+
+	void PyDeque::printHelloWorld()
+	{
+		printf("Hello World!\n");
+	}
+	
+	void add_module_mycollections(VM *vm)
+	{
+		PyObject *mycollections = vm->new_module("collections");
+		PyDeque::register_class(vm, mycollections);
+	}
+} // namespace pkpypkpy
diff --git a/src/pocketpy.cpp b/src/pocketpy.cpp
index c42ead36..086e5772 100644
--- a/src/pocketpy.cpp
+++ b/src/pocketpy.cpp
@@ -1744,6 +1744,7 @@ void VM::post_init(){
 
     add_module_linalg(this);
     add_module_easing(this);
+    add_module_mycollections(this);
 
 #ifdef PK_USE_BOX2D
     add_module_box2d(this);